diff options
Diffstat (limited to 'widget/gtk/gtk3drawing.cpp')
| -rw-r--r-- | widget/gtk/gtk3drawing.cpp | 2843 |
1 files changed, 2843 insertions, 0 deletions
diff --git a/widget/gtk/gtk3drawing.cpp b/widget/gtk/gtk3drawing.cpp new file mode 100644 index 000000000..fb95b4cc4 --- /dev/null +++ b/widget/gtk/gtk3drawing.cpp @@ -0,0 +1,2843 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +/* + * This file contains painting functions for each of the gtk2 widgets. + * Adapted from the gtkdrawing.c, and gtk+2.0 source. + */ + +#include <gtk/gtk.h> +#include <gdk/gdkprivate.h> +#include <string.h> +#include "gtkdrawing.h" +#include "mozilla/Assertions.h" +#include "prinrval.h" +#include "WidgetStyleCache.h" + +#include <math.h> + +static style_prop_t style_prop_func; +static gboolean have_arrow_scaling; +static gboolean checkbox_check_state; +static gboolean notebook_has_tab_gap; +static gboolean is_initialized; + +#define ARROW_UP 0 +#define ARROW_DOWN G_PI +#define ARROW_RIGHT G_PI_2 +#define ARROW_LEFT (G_PI+G_PI_2) + +#if !GTK_CHECK_VERSION(3,14,0) +#define GTK_STATE_FLAG_CHECKED (1 << 11) +#endif + +static gint +moz_gtk_get_tab_thickness(GtkStyleContext *style); + +// GetStateFlagsFromGtkWidgetState() can be safely used for the specific +// GtkWidgets that set both prelight and active flags. For other widgets, +// either the GtkStateFlags or Gecko's GtkWidgetState need to be carefully +// adjusted to match GTK behavior. Although GTK sets insensitive and focus +// flags in the generic GtkWidget base class, GTK adds prelight and active +// flags only to widgets that are expected to demonstrate prelight or active +// states. This contrasts with HTML where any element may have :active and +// :hover states, and so Gecko's GtkStateFlags do not necessarily map to GTK +// flags. Failure to restrict the flags in the same way as GTK can cause +// generic CSS selectors from some themes to unintentionally match elements +// that are not expected to change appearance on hover or mouse-down. +static GtkStateFlags +GetStateFlagsFromGtkWidgetState(GtkWidgetState* state) +{ + GtkStateFlags stateFlags = GTK_STATE_FLAG_NORMAL; + + if (state->disabled) + stateFlags = GTK_STATE_FLAG_INSENSITIVE; + else { + if (state->depressed || state->active) + stateFlags = static_cast<GtkStateFlags>(stateFlags|GTK_STATE_FLAG_ACTIVE); + if (state->inHover) + stateFlags = static_cast<GtkStateFlags>(stateFlags|GTK_STATE_FLAG_PRELIGHT); + if (state->focused) + stateFlags = static_cast<GtkStateFlags>(stateFlags|GTK_STATE_FLAG_FOCUSED); + } + + return stateFlags; +} + +static GtkStateFlags +GetStateFlagsFromGtkTabFlags(GtkTabFlags flags) +{ + return ((flags & MOZ_GTK_TAB_SELECTED) == 0) ? + GTK_STATE_FLAG_NORMAL : GTK_STATE_FLAG_ACTIVE; +} + +gint +moz_gtk_enable_style_props(style_prop_t styleGetProp) +{ + style_prop_func = styleGetProp; + return MOZ_GTK_SUCCESS; +} + +gint +moz_gtk_init() +{ + if (is_initialized) + return MOZ_GTK_SUCCESS; + + is_initialized = TRUE; + have_arrow_scaling = (gtk_major_version > 2 || + (gtk_major_version == 2 && gtk_minor_version >= 12)); + if (gtk_major_version > 3 || + (gtk_major_version == 3 && gtk_minor_version >= 14)) + checkbox_check_state = GTK_STATE_FLAG_CHECKED; + else + checkbox_check_state = GTK_STATE_FLAG_ACTIVE; + + if (gtk_check_version(3, 12, 0) == nullptr && + gtk_check_version(3, 20, 0) != nullptr) + { + // Deprecated for Gtk >= 3.20+ + GtkStyleContext *style = ClaimStyleContext(MOZ_GTK_TAB_TOP); + gtk_style_context_get_style(style, + "has-tab-gap", ¬ebook_has_tab_gap, NULL); + ReleaseStyleContext(style); + } + else { + notebook_has_tab_gap = true; + } + + return MOZ_GTK_SUCCESS; +} + +gint +moz_gtk_checkbox_get_metrics(gint* indicator_size, gint* indicator_spacing) +{ + gtk_widget_style_get(GetWidget(MOZ_GTK_CHECKBUTTON_CONTAINER), + "indicator_size", indicator_size, + "indicator_spacing", indicator_spacing, + NULL); + return MOZ_GTK_SUCCESS; +} + +gint +moz_gtk_radio_get_metrics(gint* indicator_size, gint* indicator_spacing) +{ + gtk_widget_style_get(GetWidget(MOZ_GTK_RADIOBUTTON_CONTAINER), + "indicator_size", indicator_size, + "indicator_spacing", indicator_spacing, + NULL); + return MOZ_GTK_SUCCESS; +} + +static gint +moz_gtk_get_focus_outline_size(GtkStyleContext* style, + gint* focus_h_width, gint* focus_v_width) +{ + GtkBorder border; + GtkBorder padding; + gtk_style_context_get_border(style, GTK_STATE_FLAG_NORMAL, &border); + gtk_style_context_get_padding(style, GTK_STATE_FLAG_NORMAL, &padding); + *focus_h_width = border.left + padding.left; + *focus_v_width = border.top + padding.top; + return MOZ_GTK_SUCCESS; +} + +gint +moz_gtk_get_focus_outline_size(gint* focus_h_width, gint* focus_v_width) +{ + GtkStyleContext *style = ClaimStyleContext(MOZ_GTK_ENTRY); + moz_gtk_get_focus_outline_size(style, focus_h_width, focus_v_width); + ReleaseStyleContext(style); + return MOZ_GTK_SUCCESS; +} + +gint +moz_gtk_menuitem_get_horizontal_padding(gint* horizontal_padding) +{ + GtkStyleContext *style = ClaimStyleContext(MOZ_GTK_MENUITEM); + gtk_style_context_get_style(style, + "horizontal-padding", horizontal_padding, + nullptr); + ReleaseStyleContext(style); + return MOZ_GTK_SUCCESS; +} + +gint +moz_gtk_checkmenuitem_get_horizontal_padding(gint* horizontal_padding) +{ + GtkStyleContext *style = ClaimStyleContext(MOZ_GTK_CHECKMENUITEM_CONTAINER); + gtk_style_context_get_style(style, + "horizontal-padding", horizontal_padding, + nullptr); + ReleaseStyleContext(style); + return MOZ_GTK_SUCCESS; +} + +gint +moz_gtk_button_get_default_overflow(gint* border_top, gint* border_left, + gint* border_bottom, gint* border_right) +{ + GtkBorder* default_outside_border; + + GtkStyleContext *style = ClaimStyleContext(MOZ_GTK_BUTTON); + gtk_style_context_get_style(style, + "default-outside-border", &default_outside_border, + NULL); + ReleaseStyleContext(style); + + if (default_outside_border) { + *border_top = default_outside_border->top; + *border_left = default_outside_border->left; + *border_bottom = default_outside_border->bottom; + *border_right = default_outside_border->right; + gtk_border_free(default_outside_border); + } else { + *border_top = *border_left = *border_bottom = *border_right = 0; + } + return MOZ_GTK_SUCCESS; +} + +static gint +moz_gtk_button_get_default_border(gint* border_top, gint* border_left, + gint* border_bottom, gint* border_right) +{ + GtkBorder* default_border; + + GtkStyleContext *style = ClaimStyleContext(MOZ_GTK_BUTTON); + gtk_style_context_get_style(style, + "default-border", &default_border, + NULL); + ReleaseStyleContext(style); + + if (default_border) { + *border_top = default_border->top; + *border_left = default_border->left; + *border_bottom = default_border->bottom; + *border_right = default_border->right; + gtk_border_free(default_border); + } else { + /* see gtkbutton.c */ + *border_top = *border_left = *border_bottom = *border_right = 1; + } + return MOZ_GTK_SUCCESS; +} + +gint +moz_gtk_splitter_get_metrics(gint orientation, gint* size) +{ + GtkStyleContext *style; + if (orientation == GTK_ORIENTATION_HORIZONTAL) { + style = ClaimStyleContext(MOZ_GTK_SPLITTER_HORIZONTAL); + } else { + style = ClaimStyleContext(MOZ_GTK_SPLITTER_VERTICAL); + } + gtk_style_context_get_style(style, "handle_size", size, NULL); + ReleaseStyleContext(style); + return MOZ_GTK_SUCCESS; +} + +static gint +moz_gtk_window_paint(cairo_t *cr, GdkRectangle* rect, + GtkTextDirection direction) +{ + GtkStyleContext* style = ClaimStyleContext(MOZ_GTK_WINDOW, direction); + + gtk_style_context_save(style); + gtk_style_context_add_class(style, GTK_STYLE_CLASS_BACKGROUND); + gtk_render_background(style, cr, rect->x, rect->y, rect->width, rect->height); + gtk_style_context_restore(style); + + ReleaseStyleContext(style); + + return MOZ_GTK_SUCCESS; +} + +static gint +moz_gtk_button_paint(cairo_t *cr, GdkRectangle* rect, + GtkWidgetState* state, + GtkReliefStyle relief, GtkWidget* widget, + GtkTextDirection direction) +{ + GtkStateFlags state_flags = GetStateFlagsFromGtkWidgetState(state); + GtkStyleContext* style = gtk_widget_get_style_context(widget); + gint x = rect->x, y=rect->y, width=rect->width, height=rect->height; + + gtk_widget_set_direction(widget, direction); + + gtk_style_context_save(style); + gtk_style_context_set_state(style, state_flags); + + if (state->isDefault && relief == GTK_RELIEF_NORMAL) { + /* handle default borders both outside and inside the button */ + gint default_top, default_left, default_bottom, default_right; + moz_gtk_button_get_default_overflow(&default_top, &default_left, + &default_bottom, &default_right); + x -= default_left; + y -= default_top; + width += default_left + default_right; + height += default_top + default_bottom; + gtk_render_background(style, cr, x, y, width, height); + gtk_render_frame(style, cr, x, y, width, height); + moz_gtk_button_get_default_border(&default_top, &default_left, + &default_bottom, &default_right); + x += default_left; + y += default_top; + width -= (default_left + default_right); + height -= (default_top + default_bottom); + } else if (relief != GTK_RELIEF_NONE || state->depressed || + (state_flags & GTK_STATE_FLAG_PRELIGHT)) { + /* the following line can trigger an assertion (Crux theme) + file ../../gdk/gdkwindow.c: line 1846 (gdk_window_clear_area): + assertion `GDK_IS_WINDOW (window)' failed */ + gtk_render_background(style, cr, x, y, width, height); + gtk_render_frame(style, cr, x, y, width, height); + } + + if (state->focused) { + GtkBorder border; + gtk_style_context_get_border(style, state_flags, &border); + x += border.left; + y += border.top; + width -= (border.left + border.right); + height -= (border.top + border.bottom); + gtk_render_focus(style, cr, x, y, width, height); + } + gtk_style_context_restore(style); + return MOZ_GTK_SUCCESS; +} + +static gint +moz_gtk_toggle_paint(cairo_t *cr, GdkRectangle* rect, + GtkWidgetState* state, + gboolean selected, gboolean inconsistent, + gboolean isradio, GtkTextDirection direction) +{ + GtkStateFlags state_flags = GetStateFlagsFromGtkWidgetState(state); + gint indicator_size, indicator_spacing; + gint x, y, width, height; + gint focus_x, focus_y, focus_width, focus_height; + GtkStyleContext *style; + + GtkWidget *widget = GetWidget(isradio ? MOZ_GTK_RADIOBUTTON_CONTAINER : + MOZ_GTK_CHECKBUTTON_CONTAINER); + gtk_widget_style_get(widget, + "indicator_size", &indicator_size, + "indicator_spacing", &indicator_spacing, + nullptr); + + // XXX we should assert rect->height >= indicator_size too + // after bug 369581 is fixed. + MOZ_ASSERT(rect->width >= indicator_size, + "GetMinimumWidgetSize was ignored"); + + // Paint it center aligned in the rect. + x = rect->x + (rect->width - indicator_size) / 2; + y = rect->y + (rect->height - indicator_size) / 2; + width = indicator_size; + height = indicator_size; + + focus_x = x - indicator_spacing; + focus_y = y - indicator_spacing; + focus_width = width + 2 * indicator_spacing; + focus_height = height + 2 * indicator_spacing; + + if (selected) + state_flags = static_cast<GtkStateFlags>(state_flags|checkbox_check_state); + + if (inconsistent) + state_flags = static_cast<GtkStateFlags>(state_flags|GTK_STATE_FLAG_INCONSISTENT); + + style = ClaimStyleContext(isradio ? MOZ_GTK_RADIOBUTTON : + MOZ_GTK_CHECKBUTTON, + direction, state_flags); + + if (gtk_check_version(3, 20, 0) == nullptr) { + gtk_render_background(style, cr, x, y, width, height); + gtk_render_frame(style, cr, x, y, width, height); + } + + if (isradio) { + gtk_render_option(style, cr, x, y, width, height); + if (state->focused) { + gtk_render_focus(style, cr, focus_x, focus_y, + focus_width, focus_height); + } + } + else { + gtk_render_check(style, cr, x, y, width, height); + if (state->focused) { + gtk_render_focus(style, cr, + focus_x, focus_y, focus_width, focus_height); + } + } + + ReleaseStyleContext(style); + + return MOZ_GTK_SUCCESS; +} + +static gint +calculate_button_inner_rect(GtkWidget* button, GdkRectangle* rect, + GdkRectangle* inner_rect, + GtkTextDirection direction) +{ + GtkStyleContext* style; + GtkBorder border; + GtkBorder padding = {0, 0, 0, 0}; + + style = gtk_widget_get_style_context(button); + + /* This mirrors gtkbutton's child positioning */ + gtk_style_context_get_border(style, GTK_STATE_FLAG_NORMAL, &border); + gtk_style_context_get_padding(style, GTK_STATE_FLAG_NORMAL, &padding); + + inner_rect->x = rect->x + border.left + padding.left; + inner_rect->y = rect->y + padding.top + border.top; + inner_rect->width = MAX(1, rect->width - padding.left - + padding.right - border.left * 2); + inner_rect->height = MAX(1, rect->height - padding.top - + padding.bottom - border.top * 2); + + return MOZ_GTK_SUCCESS; +} + + +static gint +calculate_arrow_rect(GtkWidget* arrow, GdkRectangle* rect, + GdkRectangle* arrow_rect, GtkTextDirection direction) +{ + /* defined in gtkarrow.c */ + gfloat arrow_scaling = 0.7; + gfloat xalign, xpad; + gint extent; + gint mxpad, mypad; + gfloat mxalign, myalign; + GtkMisc* misc = GTK_MISC(arrow); + + if (have_arrow_scaling) + gtk_style_context_get_style(gtk_widget_get_style_context(arrow), + "arrow_scaling", &arrow_scaling, NULL); + + gtk_misc_get_padding(misc, &mxpad, &mypad); + extent = MIN((rect->width - mxpad * 2), + (rect->height - mypad * 2)) * arrow_scaling; + + gtk_misc_get_alignment(misc, &mxalign, &myalign); + + xalign = direction == GTK_TEXT_DIR_LTR ? mxalign : 1.0 - mxalign; + xpad = mxpad + (rect->width - extent) * xalign; + + arrow_rect->x = direction == GTK_TEXT_DIR_LTR ? + floor(rect->x + xpad) : ceil(rect->x + xpad); + arrow_rect->y = floor(rect->y + mypad + + ((rect->height - extent) * myalign)); + + arrow_rect->width = arrow_rect->height = extent; + + return MOZ_GTK_SUCCESS; +} + +void +moz_gtk_get_widget_min_size(WidgetNodeType aGtkWidgetType, int* width, + int* height) +{ + GtkStyleContext* style = ClaimStyleContext(aGtkWidgetType); + GtkStateFlags state_flags = gtk_style_context_get_state(style); + gtk_style_context_get(style, state_flags, + "min-height", height, + "min-width", width, + nullptr); + + GtkBorder border, padding, margin; + gtk_style_context_get_border(style, state_flags, &border); + gtk_style_context_get_padding(style, state_flags, &padding); + gtk_style_context_get_margin(style, state_flags, &margin); + ReleaseStyleContext(style); + + *width += border.left + border.right + margin.left + margin.right + + padding.left + padding.right; + *height += border.top + border.bottom + margin.top + margin.bottom + + padding.top + padding.bottom; +} + +static void +moz_gtk_rectangle_inset(GdkRectangle* rect, GtkBorder& aBorder) +{ + MOZ_ASSERT(rect); + rect->x += aBorder.left; + rect->y += aBorder.top; + rect->width -= aBorder.left + aBorder.right; + rect->height -= aBorder.top + aBorder.bottom; +} + +/* Subtracting margin is used to inset drawing of element which can have margins, + * like scrollbar, scrollbar's trough, thumb and scrollbar's button */ +static void +moz_gtk_subtract_margin(GtkStyleContext* style, GdkRectangle* rect) +{ + MOZ_ASSERT(rect); + GtkBorder margin; + + gtk_style_context_get_margin(style, gtk_style_context_get_state(style), + &margin); + moz_gtk_rectangle_inset(rect, margin); +} + +static gint +moz_gtk_scrollbar_button_paint(cairo_t *cr, const GdkRectangle* aRect, + GtkWidgetState* state, + GtkScrollbarButtonFlags flags, + GtkTextDirection direction) +{ + GtkStateFlags state_flags = GetStateFlagsFromGtkWidgetState(state); + GdkRectangle arrow_rect; + gdouble arrow_angle; + GtkStyleContext* style; + gint arrow_displacement_x, arrow_displacement_y; + + GtkWidget *scrollbar = + GetWidget(flags & MOZ_GTK_STEPPER_VERTICAL ? + MOZ_GTK_SCROLLBAR_VERTICAL : MOZ_GTK_SCROLLBAR_HORIZONTAL); + + gtk_widget_set_direction(scrollbar, direction); + + if (flags & MOZ_GTK_STEPPER_VERTICAL) { + arrow_angle = (flags & MOZ_GTK_STEPPER_DOWN) ? ARROW_DOWN : ARROW_UP; + } else { + arrow_angle = (flags & MOZ_GTK_STEPPER_DOWN) ? ARROW_RIGHT : ARROW_LEFT; + } + + style = gtk_widget_get_style_context(scrollbar); + + gtk_style_context_save(style); + gtk_style_context_add_class(style, GTK_STYLE_CLASS_BUTTON); + gtk_style_context_set_state(style, state_flags); + if (arrow_angle == ARROW_RIGHT) { + gtk_style_context_add_class(style, GTK_STYLE_CLASS_RIGHT); + } else if (arrow_angle == ARROW_DOWN) { + gtk_style_context_add_class(style, GTK_STYLE_CLASS_BOTTOM); + } else if (arrow_angle == ARROW_LEFT) { + gtk_style_context_add_class(style, GTK_STYLE_CLASS_LEFT); + } else { + gtk_style_context_add_class(style, GTK_STYLE_CLASS_TOP); + } + + GdkRectangle rect = *aRect; + if (gtk_check_version(3,20,0) == nullptr) { + // The "trough-border" is not used since GTK 3.20. The stepper margin + // box occupies the full width of the "contents" gadget content box. + moz_gtk_subtract_margin(style, &rect); + } else { + // Scrollbar button has to be inset by trough_border because its DOM + // element is filling width of vertical scrollbar's track (or height + // in case of horizontal scrollbars). + MozGtkScrollbarMetrics metrics; + moz_gtk_get_scrollbar_metrics(&metrics); + if (flags & MOZ_GTK_STEPPER_VERTICAL) { + rect.x += metrics.trough_border; + rect.width = metrics.slider_width; + } else { + rect.y += metrics.trough_border; + rect.height = metrics.slider_width; + } + } + + gtk_render_background(style, cr, rect.x, rect.y, rect.width, rect.height); + gtk_render_frame(style, cr, rect.x, rect.y, rect.width, rect.height); + + arrow_rect.width = rect.width / 2; + arrow_rect.height = rect.height / 2; + + gfloat arrow_scaling; + gtk_style_context_get_style(style, "arrow-scaling", &arrow_scaling, NULL); + + gdouble arrow_size = MIN(rect.width, rect.height) * arrow_scaling; + arrow_rect.x = rect.x + (rect.width - arrow_size) / 2; + arrow_rect.y = rect.y + (rect.height - arrow_size) / 2; + + if (state_flags & GTK_STATE_FLAG_ACTIVE) { + gtk_style_context_get_style(style, + "arrow-displacement-x", &arrow_displacement_x, + "arrow-displacement-y", &arrow_displacement_y, + NULL); + + arrow_rect.x += arrow_displacement_x; + arrow_rect.y += arrow_displacement_y; + } + + gtk_render_arrow(style, cr, arrow_angle, + arrow_rect.x, + arrow_rect.y, + arrow_size); + + gtk_style_context_restore(style); + + return MOZ_GTK_SUCCESS; +} + +static void +moz_gtk_update_scrollbar_style(GtkStyleContext* style, + WidgetNodeType widget, + GtkTextDirection direction) +{ + if (widget == MOZ_GTK_SCROLLBAR_HORIZONTAL) { + gtk_style_context_add_class(style, GTK_STYLE_CLASS_BOTTOM); + } else { + if (direction == GTK_TEXT_DIR_LTR) { + gtk_style_context_add_class(style, GTK_STYLE_CLASS_RIGHT); + gtk_style_context_remove_class(style, GTK_STYLE_CLASS_LEFT); + } else { + gtk_style_context_add_class(style, GTK_STYLE_CLASS_LEFT); + gtk_style_context_remove_class(style, GTK_STYLE_CLASS_RIGHT); + } + } +} + +static void +moz_gtk_draw_styled_frame(GtkStyleContext* style, cairo_t *cr, + const GdkRectangle* aRect, bool drawFocus) +{ + GdkRectangle rect = *aRect; + if (gtk_check_version(3, 6, 0) == nullptr) { + moz_gtk_subtract_margin(style, &rect); + } + gtk_render_background(style, cr, rect.x, rect.y, rect.width, rect.height); + gtk_render_frame(style, cr, rect.x, rect.y, rect.width, rect.height); + if (drawFocus) { + gtk_render_focus(style, cr, + rect.x, rect.y, rect.width, rect.height); + } +} + +static gint +moz_gtk_scrollbar_trough_paint(WidgetNodeType widget, + cairo_t *cr, const GdkRectangle* rect, + GtkWidgetState* state, + GtkTextDirection direction) +{ + GtkStyleContext* style = ClaimStyleContext(widget, direction); + moz_gtk_draw_styled_frame(style, cr, rect, state->focused); + ReleaseStyleContext(style); + + return MOZ_GTK_SUCCESS; +} + +static gint +moz_gtk_scrollbar_paint(WidgetNodeType widget, + cairo_t *cr, const GdkRectangle* rect, + GtkWidgetState* state, + GtkTextDirection direction) +{ + GtkStyleContext* style = ClaimStyleContext(widget, direction); + moz_gtk_update_scrollbar_style(style, widget, direction); + + moz_gtk_draw_styled_frame(style, cr, rect, state->focused); + + ReleaseStyleContext(style); + style = ClaimStyleContext((widget == MOZ_GTK_SCROLLBAR_HORIZONTAL) ? + MOZ_GTK_SCROLLBAR_CONTENTS_HORIZONTAL : + MOZ_GTK_SCROLLBAR_CONTENTS_VERTICAL, + direction); + moz_gtk_draw_styled_frame(style, cr, rect, state->focused); + ReleaseStyleContext(style); + + return MOZ_GTK_SUCCESS; +} + +static gint +moz_gtk_scrollbar_thumb_paint(WidgetNodeType widget, + cairo_t *cr, const GdkRectangle* aRect, + GtkWidgetState* state, + GtkTextDirection direction) +{ + GtkStateFlags state_flags = GetStateFlagsFromGtkWidgetState(state); + + GdkRectangle rect = *aRect; + GtkStyleContext* style = ClaimStyleContext(widget, direction, state_flags); + moz_gtk_subtract_margin(style, &rect); + + gtk_render_slider(style, cr, + rect.x, + rect.y, + rect.width, + rect.height, + (widget == MOZ_GTK_SCROLLBAR_THUMB_HORIZONTAL) ? + GTK_ORIENTATION_HORIZONTAL : GTK_ORIENTATION_VERTICAL); + + ReleaseStyleContext(style); + + return MOZ_GTK_SUCCESS; +} + +static gint +moz_gtk_spin_paint(cairo_t *cr, GdkRectangle* rect, + GtkTextDirection direction) +{ + GtkStyleContext* style = ClaimStyleContext(MOZ_GTK_SPINBUTTON, direction); + gtk_render_background(style, cr, rect->x, rect->y, rect->width, rect->height); + gtk_render_frame(style, cr, rect->x, rect->y, rect->width, rect->height); + ReleaseStyleContext(style); + return MOZ_GTK_SUCCESS; +} + +static gint +moz_gtk_spin_updown_paint(cairo_t *cr, GdkRectangle* rect, + gboolean isDown, GtkWidgetState* state, + GtkTextDirection direction) +{ + GtkStyleContext* style = ClaimStyleContext(MOZ_GTK_SPINBUTTON, direction, + GetStateFlagsFromGtkWidgetState(state)); + + gtk_render_background(style, cr, rect->x, rect->y, rect->width, rect->height); + gtk_render_frame(style, cr, rect->x, rect->y, rect->width, rect->height); + + /* hard code these values */ + GdkRectangle arrow_rect; + arrow_rect.width = 6; + arrow_rect.height = 6; + arrow_rect.x = rect->x + (rect->width - arrow_rect.width) / 2; + arrow_rect.y = rect->y + (rect->height - arrow_rect.height) / 2; + arrow_rect.y += isDown ? -1 : 1; + + gtk_render_arrow(style, cr, + isDown ? ARROW_DOWN : ARROW_UP, + arrow_rect.x, arrow_rect.y, + arrow_rect.width); + + ReleaseStyleContext(style); + return MOZ_GTK_SUCCESS; +} + +/* See gtk_range_draw() for reference. +*/ +static gint +moz_gtk_scale_paint(cairo_t *cr, GdkRectangle* rect, + GtkWidgetState* state, + GtkOrientation flags, GtkTextDirection direction) +{ + GtkStateFlags state_flags = GetStateFlagsFromGtkWidgetState(state); + gint x, y, width, height, min_width, min_height; + GtkStyleContext* style; + GtkBorder margin; + + moz_gtk_get_scale_metrics(flags, &min_width, &min_height); + + WidgetNodeType widget = (flags == GTK_ORIENTATION_HORIZONTAL) ? + MOZ_GTK_SCALE_TROUGH_HORIZONTAL : + MOZ_GTK_SCALE_TROUGH_VERTICAL; + style = ClaimStyleContext(widget, direction, state_flags); + gtk_style_context_get_margin(style, state_flags, &margin); + + // Clamp the dimension perpendicular to the direction that the slider crosses + // to the minimum size. + if (flags == GTK_ORIENTATION_HORIZONTAL) { + width = rect->width - (margin.left + margin.right); + height = min_height - (margin.top + margin.bottom); + x = rect->x + margin.left; + y = rect->y + (rect->height - height)/2; + } else { + width = min_width - (margin.left + margin.right); + height = rect->height - (margin.top + margin.bottom); + x = rect->x + (rect->width - width)/2; + y = rect->y + margin.top; + } + + gtk_render_background(style, cr, x, y, width, height); + gtk_render_frame(style, cr, x, y, width, height); + + if (state->focused) + gtk_render_focus(style, cr, + rect->x, rect->y, rect->width, rect->height); + + ReleaseStyleContext(style); + return MOZ_GTK_SUCCESS; +} + +static gint +moz_gtk_scale_thumb_paint(cairo_t *cr, GdkRectangle* rect, + GtkWidgetState* state, + GtkOrientation flags, GtkTextDirection direction) +{ + GtkStateFlags state_flags = GetStateFlagsFromGtkWidgetState(state); + GtkStyleContext* style; + gint thumb_width, thumb_height, x, y; + + /* determine the thumb size, and position the thumb in the center in the opposite axis + */ + if (flags == GTK_ORIENTATION_HORIZONTAL) { + moz_gtk_get_scalethumb_metrics(GTK_ORIENTATION_HORIZONTAL, &thumb_width, &thumb_height); + x = rect->x; + y = rect->y + (rect->height - thumb_height) / 2; + } + else { + moz_gtk_get_scalethumb_metrics(GTK_ORIENTATION_VERTICAL, &thumb_height, &thumb_width); + x = rect->x + (rect->width - thumb_width) / 2; + y = rect->y; + } + + WidgetNodeType widget = (flags == GTK_ORIENTATION_HORIZONTAL) ? + MOZ_GTK_SCALE_THUMB_HORIZONTAL : + MOZ_GTK_SCALE_THUMB_VERTICAL; + style = ClaimStyleContext(widget, direction, state_flags); + gtk_render_slider(style, cr, x, y, thumb_width, thumb_height, flags); + ReleaseStyleContext(style); + + return MOZ_GTK_SUCCESS; +} + +static gint +moz_gtk_gripper_paint(cairo_t *cr, GdkRectangle* rect, + GtkWidgetState* state, + GtkTextDirection direction) +{ + GtkStyleContext* style = + ClaimStyleContext(MOZ_GTK_GRIPPER, direction, + GetStateFlagsFromGtkWidgetState(state)); + gtk_render_background(style, cr, rect->x, rect->y, rect->width, rect->height); + gtk_render_frame(style, cr, rect->x, rect->y, rect->width, rect->height); + ReleaseStyleContext(style); + return MOZ_GTK_SUCCESS; +} + +static gint +moz_gtk_hpaned_paint(cairo_t *cr, GdkRectangle* rect, + GtkWidgetState* state) +{ + GtkStyleContext* style = + ClaimStyleContext(MOZ_GTK_SPLITTER_SEPARATOR_HORIZONTAL, + GTK_TEXT_DIR_LTR, + GetStateFlagsFromGtkWidgetState(state)); + gtk_render_handle(style, cr, + rect->x, rect->y, rect->width, rect->height); + ReleaseStyleContext(style); + return MOZ_GTK_SUCCESS; +} + +static gint +moz_gtk_vpaned_paint(cairo_t *cr, GdkRectangle* rect, + GtkWidgetState* state) +{ + GtkStyleContext* style = + ClaimStyleContext(MOZ_GTK_SPLITTER_SEPARATOR_VERTICAL, + GTK_TEXT_DIR_LTR, + GetStateFlagsFromGtkWidgetState(state)); + gtk_render_handle(style, cr, + rect->x, rect->y, rect->width, rect->height); + ReleaseStyleContext(style); + return MOZ_GTK_SUCCESS; +} + +// See gtk_entry_draw() for reference. +static gint +moz_gtk_entry_paint(cairo_t *cr, GdkRectangle* rect, + GtkWidgetState* state, + GtkStyleContext* style) +{ + gint x = rect->x, y = rect->y, width = rect->width, height = rect->height; + int draw_focus_outline_only = state->depressed; // NS_THEME_FOCUS_OUTLINE + + if (draw_focus_outline_only) { + // Inflate the given 'rect' with the focus outline size. + gint h, v; + moz_gtk_get_focus_outline_size(style, &h, &v); + rect->x -= h; + rect->width += 2 * h; + rect->y -= v; + rect->height += 2 * v; + width = rect->width; + height = rect->height; + } else { + gtk_render_background(style, cr, x, y, width, height); + } + gtk_render_frame(style, cr, x, y, width, height); + + return MOZ_GTK_SUCCESS; +} + +static gint +moz_gtk_text_view_paint(cairo_t *cr, GdkRectangle* rect, + GtkWidgetState* state, + GtkTextDirection direction) +{ + // GtkTextView and GtkScrolledWindow do not set active and prelight flags. + // The use of focus with MOZ_GTK_SCROLLED_WINDOW here is questionable + // because a parent widget will not have focus when its child GtkTextView + // has focus, but perhaps this may help identify a focused textarea with + // some themes as GtkTextView backgrounds do not typically render + // differently with focus. + GtkStateFlags state_flags = + state->disabled ? GTK_STATE_FLAG_INSENSITIVE : + state->focused ? GTK_STATE_FLAG_FOCUSED : + GTK_STATE_FLAG_NORMAL; + + GtkStyleContext* style_frame = + ClaimStyleContext(MOZ_GTK_SCROLLED_WINDOW, direction, state_flags); + gtk_render_frame(style_frame, cr, rect->x, rect->y, rect->width, rect->height); + + GtkBorder border, padding; + gtk_style_context_get_border(style_frame, state_flags, &border); + gtk_style_context_get_padding(style_frame, state_flags, &padding); + ReleaseStyleContext(style_frame); + + GtkStyleContext* style = + ClaimStyleContext(MOZ_GTK_TEXT_VIEW, direction, state_flags); + + gint xthickness = border.left + padding.left; + gint ythickness = border.top + padding.top; + + gtk_render_background(style, cr, + rect->x + xthickness, rect->y + ythickness, + rect->width - 2 * xthickness, + rect->height - 2 * ythickness); + + ReleaseStyleContext(style); + + return MOZ_GTK_SUCCESS; +} + +static gint +moz_gtk_treeview_paint(cairo_t *cr, GdkRectangle* rect, + GtkWidgetState* state, + GtkTextDirection direction) +{ + gint xthickness, ythickness; + GtkStyleContext *style; + GtkStyleContext *style_tree; + GtkStateFlags state_flags; + GtkBorder border; + + /* only handle disabled and normal states, otherwise the whole background + * area will be painted differently with other states */ + state_flags = state->disabled ? GTK_STATE_FLAG_INSENSITIVE : GTK_STATE_FLAG_NORMAL; + + style = ClaimStyleContext(MOZ_GTK_SCROLLED_WINDOW, direction); + gtk_style_context_get_border(style, state_flags, &border); + xthickness = border.left; + ythickness = border.top; + ReleaseStyleContext(style); + + style_tree = ClaimStyleContext(MOZ_GTK_TREEVIEW_VIEW, direction); + gtk_render_background(style_tree, cr, + rect->x + xthickness, rect->y + ythickness, + rect->width - 2 * xthickness, + rect->height - 2 * ythickness); + ReleaseStyleContext(style_tree); + + style = ClaimStyleContext(MOZ_GTK_SCROLLED_WINDOW, direction); + gtk_render_frame(style, cr, + rect->x, rect->y, rect->width, rect->height); + ReleaseStyleContext(style); + return MOZ_GTK_SUCCESS; +} + +static gint +moz_gtk_tree_header_cell_paint(cairo_t *cr, GdkRectangle* rect, + GtkWidgetState* state, + gboolean isSorted, GtkTextDirection direction) +{ + moz_gtk_button_paint(cr, rect, state, GTK_RELIEF_NORMAL, + GetWidget(MOZ_GTK_TREE_HEADER_CELL), direction); + return MOZ_GTK_SUCCESS; +} + +static gint +moz_gtk_tree_header_sort_arrow_paint(cairo_t *cr, GdkRectangle* rect, + GtkWidgetState* state, GtkArrowType arrow_type, + GtkTextDirection direction) +{ + GdkRectangle arrow_rect; + gdouble arrow_angle; + GtkStyleContext* style; + + /* hard code these values */ + arrow_rect.width = 11; + arrow_rect.height = 11; + arrow_rect.x = rect->x + (rect->width - arrow_rect.width) / 2; + arrow_rect.y = rect->y + (rect->height - arrow_rect.height) / 2; + style = ClaimStyleContext(MOZ_GTK_TREE_HEADER_SORTARROW, direction, + GetStateFlagsFromGtkWidgetState(state)); + switch (arrow_type) { + case GTK_ARROW_LEFT: + arrow_angle = ARROW_LEFT; + break; + case GTK_ARROW_RIGHT: + arrow_angle = ARROW_RIGHT; + break; + case GTK_ARROW_DOWN: + arrow_angle = ARROW_DOWN; + break; + default: + arrow_angle = ARROW_UP; + break; + } + if (arrow_type != GTK_ARROW_NONE) + gtk_render_arrow(style, cr, arrow_angle, + arrow_rect.x, arrow_rect.y, + arrow_rect.width); + ReleaseStyleContext(style); + return MOZ_GTK_SUCCESS; +} + +/* See gtk_expander_paint() for reference. + */ +static gint +moz_gtk_treeview_expander_paint(cairo_t *cr, GdkRectangle* rect, + GtkWidgetState* state, + GtkExpanderStyle expander_state, + GtkTextDirection direction) +{ + /* Because the frame we get is of the entire treeview, we can't get the precise + * event state of one expander, thus rendering hover and active feedback useless. */ + GtkStateFlags state_flags = state->disabled ? GTK_STATE_FLAG_INSENSITIVE : + GTK_STATE_FLAG_NORMAL; + + /* GTK_STATE_FLAG_ACTIVE controls expanded/colapsed state rendering + * in gtk_render_expander() + */ + if (expander_state == GTK_EXPANDER_EXPANDED) + state_flags = static_cast<GtkStateFlags>(state_flags|checkbox_check_state); + else + state_flags = static_cast<GtkStateFlags>(state_flags&~(checkbox_check_state)); + + GtkStyleContext *style = ClaimStyleContext(MOZ_GTK_TREEVIEW_EXPANDER, + direction, state_flags); + gtk_render_expander(style, cr, + rect->x, + rect->y, + rect->width, + rect->height); + + ReleaseStyleContext(style); + return MOZ_GTK_SUCCESS; +} + +/* See gtk_separator_draw() for reference. +*/ +static gint +moz_gtk_combo_box_paint(cairo_t *cr, GdkRectangle* rect, + GtkWidgetState* state, + GtkTextDirection direction) +{ + GdkRectangle arrow_rect, real_arrow_rect; + gint separator_width; + gboolean wide_separators; + GtkStyleContext* style; + GtkRequisition arrow_req; + + GtkWidget* comboBoxButton = GetWidget(MOZ_GTK_COMBOBOX_BUTTON); + GtkWidget* comboBoxArrow = GetWidget(MOZ_GTK_COMBOBOX_ARROW); + + /* Also sets the direction on gComboBoxButtonWidget, which is then + * inherited by the separator and arrow */ + moz_gtk_button_paint(cr, rect, state, GTK_RELIEF_NORMAL, + comboBoxButton, direction); + + calculate_button_inner_rect(comboBoxButton, rect, &arrow_rect, direction); + /* Now arrow_rect contains the inner rect ; we want to correct the width + * to what the arrow needs (see gtk_combo_box_size_allocate) */ + gtk_widget_get_preferred_size(comboBoxArrow, NULL, &arrow_req); + + if (direction == GTK_TEXT_DIR_LTR) + arrow_rect.x += arrow_rect.width - arrow_req.width; + arrow_rect.width = arrow_req.width; + + calculate_arrow_rect(comboBoxArrow, + &arrow_rect, &real_arrow_rect, direction); + + style = ClaimStyleContext(MOZ_GTK_COMBOBOX_ARROW); + gtk_render_arrow(style, cr, ARROW_DOWN, + real_arrow_rect.x, real_arrow_rect.y, + real_arrow_rect.width); + ReleaseStyleContext(style); + + /* If there is no separator in the theme, there's nothing left to do. */ + GtkWidget* widget = GetWidget(MOZ_GTK_COMBOBOX_SEPARATOR); + if (!widget) + return MOZ_GTK_SUCCESS; + style = gtk_widget_get_style_context(widget); + gtk_style_context_get_style(style, + "wide-separators", &wide_separators, + "separator-width", &separator_width, + NULL); + + if (wide_separators) { + if (direction == GTK_TEXT_DIR_LTR) + arrow_rect.x -= separator_width; + else + arrow_rect.x += arrow_rect.width; + + gtk_render_frame(style, cr, arrow_rect.x, arrow_rect.y, separator_width, arrow_rect.height); + } else { + if (direction == GTK_TEXT_DIR_LTR) { + GtkBorder padding; + GtkStateFlags state_flags = GetStateFlagsFromGtkWidgetState(state); + gtk_style_context_get_padding(style, state_flags, &padding); + arrow_rect.x -= padding.left; + } + else + arrow_rect.x += arrow_rect.width; + + gtk_render_line(style, cr, + arrow_rect.x, arrow_rect.y, + arrow_rect.x, arrow_rect.y + arrow_rect.height); + } + return MOZ_GTK_SUCCESS; +} + +static gint +moz_gtk_arrow_paint(cairo_t *cr, GdkRectangle* rect, + GtkWidgetState* state, + GtkArrowType arrow_type, GtkTextDirection direction) +{ + GdkRectangle arrow_rect; + gdouble arrow_angle; + + if (direction == GTK_TEXT_DIR_RTL) { + if (arrow_type == GTK_ARROW_LEFT) { + arrow_type = GTK_ARROW_RIGHT; + } else if (arrow_type == GTK_ARROW_RIGHT) { + arrow_type = GTK_ARROW_LEFT; + } + } + switch (arrow_type) { + case GTK_ARROW_LEFT: + arrow_angle = ARROW_LEFT; + break; + case GTK_ARROW_RIGHT: + arrow_angle = ARROW_RIGHT; + break; + case GTK_ARROW_DOWN: + arrow_angle = ARROW_DOWN; + break; + default: + arrow_angle = ARROW_UP; + break; + } + if (arrow_type == GTK_ARROW_NONE) + return MOZ_GTK_SUCCESS; + + calculate_arrow_rect(GetWidget(MOZ_GTK_BUTTON_ARROW), rect, &arrow_rect, + direction); + GtkStateFlags state_flags = GetStateFlagsFromGtkWidgetState(state); + GtkStyleContext* style = ClaimStyleContext(MOZ_GTK_BUTTON_ARROW, + direction, state_flags); + gtk_render_arrow(style, cr, arrow_angle, + arrow_rect.x, arrow_rect.y, arrow_rect.width); + ReleaseStyleContext(style); + return MOZ_GTK_SUCCESS; +} + +static gint +moz_gtk_combo_box_entry_button_paint(cairo_t *cr, GdkRectangle* rect, + GtkWidgetState* state, + gboolean input_focus, + GtkTextDirection direction) +{ + gint x_displacement, y_displacement; + GdkRectangle arrow_rect, real_arrow_rect; + GtkStateFlags state_flags = GetStateFlagsFromGtkWidgetState(state); + GtkStyleContext* style; + + GtkWidget* comboBoxEntry = GetWidget(MOZ_GTK_COMBOBOX_ENTRY_BUTTON); + moz_gtk_button_paint(cr, rect, state, GTK_RELIEF_NORMAL, + comboBoxEntry, direction); + calculate_button_inner_rect(comboBoxEntry, rect, &arrow_rect, direction); + + if (state_flags & GTK_STATE_FLAG_ACTIVE) { + style = gtk_widget_get_style_context(comboBoxEntry); + gtk_style_context_get_style(style, + "child-displacement-x", &x_displacement, + "child-displacement-y", &y_displacement, + NULL); + arrow_rect.x += x_displacement; + arrow_rect.y += y_displacement; + } + + calculate_arrow_rect(GetWidget(MOZ_GTK_COMBOBOX_ENTRY_ARROW), + &arrow_rect, &real_arrow_rect, direction); + + style = ClaimStyleContext(MOZ_GTK_COMBOBOX_ENTRY_ARROW); + gtk_render_arrow(style, cr, ARROW_DOWN, + real_arrow_rect.x, real_arrow_rect.y, + real_arrow_rect.width); + ReleaseStyleContext(style); + return MOZ_GTK_SUCCESS; +} + +static gint +moz_gtk_container_paint(cairo_t *cr, GdkRectangle* rect, + GtkWidgetState* state, + WidgetNodeType widget_type, + GtkTextDirection direction) +{ + GtkStateFlags state_flags = GetStateFlagsFromGtkWidgetState(state); + GtkStyleContext* style = ClaimStyleContext(widget_type, direction, + state_flags); + /* this is for drawing a prelight box */ + if (state_flags & GTK_STATE_FLAG_PRELIGHT) { + gtk_render_background(style, cr, + rect->x, rect->y, rect->width, rect->height); + } + + ReleaseStyleContext(style); + return MOZ_GTK_SUCCESS; +} + +static gint +moz_gtk_toggle_label_paint(cairo_t *cr, GdkRectangle* rect, + GtkWidgetState* state, + gboolean isradio, GtkTextDirection direction) +{ + if (!state->focused) + return MOZ_GTK_SUCCESS; + + GtkStyleContext *style = + ClaimStyleContext(isradio ? MOZ_GTK_RADIOBUTTON_CONTAINER : + MOZ_GTK_CHECKBUTTON_CONTAINER, + direction, + GetStateFlagsFromGtkWidgetState(state)); + gtk_render_focus(style, cr, + rect->x, rect->y, rect->width, rect->height); + + ReleaseStyleContext(style); + + return MOZ_GTK_SUCCESS; +} + +static gint +moz_gtk_toolbar_paint(cairo_t *cr, GdkRectangle* rect, + GtkTextDirection direction) +{ + GtkStyleContext* style = ClaimStyleContext(MOZ_GTK_TOOLBAR, direction); + gtk_render_background(style, cr, rect->x, rect->y, rect->width, rect->height); + gtk_render_frame(style, cr, rect->x, rect->y, rect->width, rect->height); + ReleaseStyleContext(style); + return MOZ_GTK_SUCCESS; +} + +/* See _gtk_toolbar_paint_space_line() for reference. +*/ +static gint +moz_gtk_toolbar_separator_paint(cairo_t *cr, GdkRectangle* rect, + GtkTextDirection direction) +{ + gint separator_width; + gint paint_width; + gboolean wide_separators; + + /* Defined as constants in GTK+ 2.10.14 */ + const double start_fraction = 0.2; + const double end_fraction = 0.8; + + GtkStyleContext* style = ClaimStyleContext(MOZ_GTK_TOOLBAR); + gtk_style_context_get_style(style, + "wide-separators", &wide_separators, + "separator-width", &separator_width, + NULL); + ReleaseStyleContext(style); + + style = ClaimStyleContext(MOZ_GTK_TOOLBAR_SEPARATOR, direction); + if (wide_separators) { + if (separator_width > rect->width) + separator_width = rect->width; + + gtk_render_frame(style, cr, + rect->x + (rect->width - separator_width) / 2, + rect->y + rect->height * start_fraction, + separator_width, + rect->height * (end_fraction - start_fraction)); + } else { + GtkBorder padding; + gtk_style_context_get_padding(style, GTK_STATE_FLAG_NORMAL, &padding); + + paint_width = padding.left; + if (paint_width > rect->width) + paint_width = rect->width; + + gtk_render_line(style, cr, + rect->x + (rect->width - paint_width) / 2, + rect->y + rect->height * start_fraction, + rect->x + (rect->width - paint_width) / 2, + rect->y + rect->height * end_fraction); + } + ReleaseStyleContext(style); + return MOZ_GTK_SUCCESS; +} + +static gint +moz_gtk_tooltip_paint(cairo_t *cr, const GdkRectangle* aRect, + GtkTextDirection direction) +{ + // Tooltip widget is made in GTK3 as following tree: + // Tooltip window + // Horizontal Box + // Icon (not supported by Firefox) + // Label + // Each element can be fully styled by CSS of GTK theme. + // We have to draw all elements with appropriate offset and right dimensions. + + // Tooltip drawing + GtkStyleContext* style = ClaimStyleContext(MOZ_GTK_TOOLTIP, direction); + GdkRectangle rect = *aRect; + gtk_render_background(style, cr, rect.x, rect.y, rect.width, rect.height); + gtk_render_frame(style, cr, rect.x, rect.y, rect.width, rect.height); + + // Horizontal Box drawing + // + // The box element has hard-coded 6px margin-* GtkWidget properties, which + // are added between the window dimensions and the CSS margin box of the + // horizontal box. The frame of the tooltip window is drawn in the + // 6px margin. + // For drawing Horizontal Box we have to inset drawing area by that 6px + // plus its CSS margin. + GtkStyleContext* boxStyle = + CreateStyleForWidget(gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 0), style); + + rect.x += 6; + rect.y += 6; + rect.width -= 12; + rect.height -= 12; + + moz_gtk_subtract_margin(boxStyle, &rect); + gtk_render_background(boxStyle, cr, rect.x, rect.y, rect.width, rect.height); + gtk_render_frame(boxStyle, cr, rect.x, rect.y, rect.width, rect.height); + + // Label drawing + GtkBorder padding, border; + gtk_style_context_get_padding(boxStyle, GTK_STATE_FLAG_NORMAL, &padding); + moz_gtk_rectangle_inset(&rect, padding); + gtk_style_context_get_border(boxStyle, GTK_STATE_FLAG_NORMAL, &border); + moz_gtk_rectangle_inset(&rect, border); + + GtkStyleContext* labelStyle = + CreateStyleForWidget(gtk_label_new(nullptr), boxStyle); + moz_gtk_draw_styled_frame(labelStyle, cr, &rect, false); + g_object_unref(labelStyle); + + g_object_unref(boxStyle); + + ReleaseStyleContext(style); + return MOZ_GTK_SUCCESS; +} + +static gint +moz_gtk_resizer_paint(cairo_t *cr, GdkRectangle* rect, + GtkWidgetState* state, + GtkTextDirection direction) +{ + GtkStyleContext* style; + + // gtk_render_handle() draws a background, so use GtkTextView and its + // GTK_STYLE_CLASS_VIEW to match the background with textarea elements. + // The resizer is drawn with shaded variants of the background color, and + // so a transparent background would lead to a transparent resizer. + style = ClaimStyleContext(MOZ_GTK_TEXT_VIEW, GTK_TEXT_DIR_LTR, + GetStateFlagsFromGtkWidgetState(state)); + // TODO - we need to save/restore style when gtk 3.20 CSS node path + // is used + gtk_style_context_add_class(style, GTK_STYLE_CLASS_GRIP); + + // Workaround unico not respecting the text direction for resizers. + // See bug 1174248. + cairo_save(cr); + if (direction == GTK_TEXT_DIR_RTL) { + cairo_matrix_t mat; + cairo_matrix_init_translate(&mat, 2 * rect->x + rect->width, 0); + cairo_matrix_scale(&mat, -1, 1); + cairo_transform(cr, &mat); + } + + gtk_render_handle(style, cr, rect->x, rect->y, rect->width, rect->height); + cairo_restore(cr); + ReleaseStyleContext(style); + + return MOZ_GTK_SUCCESS; +} + +static gint +moz_gtk_frame_paint(cairo_t *cr, GdkRectangle* rect, + GtkTextDirection direction) +{ + GtkStyleContext* style = ClaimStyleContext(MOZ_GTK_FRAME, direction); + gtk_render_frame(style, cr, rect->x, rect->y, rect->width, rect->height); + ReleaseStyleContext(style); + return MOZ_GTK_SUCCESS; +} + +static gint +moz_gtk_progressbar_paint(cairo_t *cr, GdkRectangle* rect, + GtkTextDirection direction) +{ + GtkStyleContext* style = ClaimStyleContext(MOZ_GTK_PROGRESS_TROUGH, + direction); + gtk_render_background(style, cr, rect->x, rect->y, rect->width, rect->height); + gtk_render_frame(style, cr, rect->x, rect->y, rect->width, rect->height); + ReleaseStyleContext(style); + + return MOZ_GTK_SUCCESS; +} + +static gint +moz_gtk_progress_chunk_paint(cairo_t *cr, GdkRectangle* rect, + GtkTextDirection direction, + WidgetNodeType widget) +{ + GtkStyleContext* style; + + if (gtk_check_version(3, 20, 0) != nullptr) { + /* Ask for MOZ_GTK_PROGRESS_TROUGH instead of MOZ_GTK_PROGRESSBAR + * because ClaimStyleContext() saves/restores that style */ + style = ClaimStyleContext(MOZ_GTK_PROGRESS_TROUGH, direction); + gtk_style_context_remove_class(style, GTK_STYLE_CLASS_TROUGH); + gtk_style_context_add_class(style, GTK_STYLE_CLASS_PROGRESSBAR); + } else { + style = ClaimStyleContext(MOZ_GTK_PROGRESS_CHUNK, direction); + } + + if (widget == MOZ_GTK_PROGRESS_CHUNK_INDETERMINATE || + widget == MOZ_GTK_PROGRESS_CHUNK_VERTICAL_INDETERMINATE) { + /** + * The bar's size and the bar speed are set depending of the progress' + * size. These could also be constant for all progress bars easily. + */ + gboolean vertical = (widget == MOZ_GTK_PROGRESS_CHUNK_VERTICAL_INDETERMINATE); + + /* The size of the dimension we are going to use for the animation. */ + const gint progressSize = vertical ? rect->height : rect->width; + + /* The bar is using a fifth of the element size, based on GtkProgressBar + * activity-blocks property. */ + const gint barSize = MAX(1, progressSize / 5); + + /* Represents the travel that has to be done for a complete cycle. */ + const gint travel = 2 * (progressSize - barSize); + + /* period equals to travel / pixelsPerMillisecond + * where pixelsPerMillisecond equals progressSize / 1000.0. + * This is equivalent to 1600. */ + static const guint period = 1600; + const gint t = PR_IntervalToMilliseconds(PR_IntervalNow()) % period; + const gint dx = travel * t / period; + + if (vertical) { + rect->y += (dx < travel / 2) ? dx : travel - dx; + rect->height = barSize; + } else { + rect->x += (dx < travel / 2) ? dx : travel - dx; + rect->width = barSize; + } + } + + // gtk_render_activity was used to render progress chunks on GTK versions + // before 3.13.7, see bug 1173907. + if (!gtk_check_version(3, 13, 7)) { + gtk_render_background(style, cr, rect->x, rect->y, rect->width, rect->height); + gtk_render_frame(style, cr, rect->x, rect->y, rect->width, rect->height); + } else { + gtk_render_activity(style, cr, rect->x, rect->y, rect->width, rect->height); + } + ReleaseStyleContext(style); + + return MOZ_GTK_SUCCESS; +} + +static gint +moz_gtk_get_tab_thickness(GtkStyleContext *style) +{ + if (!notebook_has_tab_gap) + return 0; /* tabs do not overdraw the tabpanel border with "no gap" style */ + + GtkBorder border; + gtk_style_context_get_border(style, GTK_STATE_FLAG_NORMAL, &border); + if (border.top < 2) + return 2; /* some themes don't set ythickness correctly */ + + return border.top; +} + +gint +moz_gtk_get_tab_thickness(WidgetNodeType aNodeType) +{ + GtkStyleContext *style = ClaimStyleContext(aNodeType); + int thickness = moz_gtk_get_tab_thickness(style); + ReleaseStyleContext(style); + return thickness; +} + +/* actual small tabs */ +static gint +moz_gtk_tab_paint(cairo_t *cr, GdkRectangle* rect, + GtkWidgetState* state, + GtkTabFlags flags, GtkTextDirection direction, + WidgetNodeType widget) +{ + /* When the tab isn't selected, we just draw a notebook extension. + * When it is selected, we overwrite the adjacent border of the tabpanel + * touching the tab with a pierced border (called "the gap") to make the + * tab appear physically attached to the tabpanel; see details below. */ + + GtkStyleContext* style; + GdkRectangle tabRect; + GdkRectangle focusRect; + GdkRectangle backRect; + int initial_gap = 0; + bool isBottomTab = (widget == MOZ_GTK_TAB_BOTTOM); + + style = ClaimStyleContext(widget, direction, + GetStateFlagsFromGtkTabFlags(flags)); + tabRect = *rect; + + if (flags & MOZ_GTK_TAB_FIRST) { + gtk_style_context_get_style(style, "initial-gap", &initial_gap, NULL); + tabRect.width -= initial_gap; + + if (direction != GTK_TEXT_DIR_RTL) { + tabRect.x += initial_gap; + } + } + + focusRect = backRect = tabRect; + + if (notebook_has_tab_gap) { + if ((flags & MOZ_GTK_TAB_SELECTED) == 0) { + /* Only draw the tab */ + gtk_render_extension(style, cr, + tabRect.x, tabRect.y, tabRect.width, tabRect.height, + isBottomTab ? GTK_POS_TOP : GTK_POS_BOTTOM ); + } else { + /* Draw the tab and the gap + * We want the gap to be positioned exactly on the tabpanel top + * border; since tabbox.css may set a negative margin so that the tab + * frame rect already overlaps the tabpanel frame rect, we need to take + * that into account when drawing. To that effect, nsNativeThemeGTK + * passes us this negative margin (bmargin in the graphic below) in the + * lowest bits of |flags|. We use it to set gap_voffset, the distance + * between the top of the gap and the bottom of the tab (resp. the + * bottom of the gap and the top of the tab when we draw a bottom tab), + * while ensuring that the gap always touches the border of the tab, + * i.e. 0 <= gap_voffset <= gap_height, to avoid surprinsing results + * with big negative or positive margins. + * Here is a graphical explanation in the case of top tabs: + * ___________________________ + * / \ + * | T A B | + * ----------|. . . . . . . . . . . . . . .|----- top of tabpanel + * : ^ bmargin : ^ + * : | (-negative margin, : | + * bottom : v passed in flags) : | gap_height + * of -> :.............................: | (the size of the + * the tab . part of the gap . | tabpanel top border) + * . outside of the tab . v + * ---------------------------------------------- + * + * To draw the gap, we use gtk_paint_box_gap(), see comment in + * moz_gtk_tabpanels_paint(). This box_gap is made 3 * gap_height tall, + * which should suffice to ensure that the only visible border is the + * pierced one. If the tab is in the middle, we make the box_gap begin + * a bit to the left of the tab and end a bit to the right, adjusting + * the gap position so it still is under the tab, because we want the + * rendering of a gap in the middle of a tabpanel. This is the role of + * the gints gap_{l,r}_offset. On the contrary, if the tab is the + * first, we align the start border of the box_gap with the start + * border of the tab (left if LTR, right if RTL), by setting the + * appropriate offset to 0.*/ + gint gap_loffset, gap_roffset, gap_voffset, gap_height; + + /* Get height needed by the gap */ + gap_height = moz_gtk_get_tab_thickness(style); + + /* Extract gap_voffset from the first bits of flags */ + gap_voffset = flags & MOZ_GTK_TAB_MARGIN_MASK; + if (gap_voffset > gap_height) + gap_voffset = gap_height; + + /* Set gap_{l,r}_offset to appropriate values */ + gap_loffset = gap_roffset = 20; /* should be enough */ + if (flags & MOZ_GTK_TAB_FIRST) { + if (direction == GTK_TEXT_DIR_RTL) + gap_roffset = initial_gap; + else + gap_loffset = initial_gap; + } + + if (isBottomTab) { + /* Draw the tab on bottom */ + focusRect.y += gap_voffset; + focusRect.height -= gap_voffset; + + gtk_render_extension(style, cr, + tabRect.x, tabRect.y + gap_voffset, tabRect.width, + tabRect.height - gap_voffset, GTK_POS_TOP); + + gtk_style_context_remove_region(style, GTK_STYLE_REGION_TAB); + + backRect.y += (gap_voffset - gap_height); + backRect.height = gap_height; + + /* Draw the gap; erase with background color before painting in + * case theme does not */ + gtk_render_background(style, cr, backRect.x, backRect.y, + backRect.width, backRect.height); + cairo_save(cr); + cairo_rectangle(cr, backRect.x, backRect.y, backRect.width, backRect.height); + cairo_clip(cr); + + gtk_render_frame_gap(style, cr, + tabRect.x - gap_loffset, + tabRect.y + gap_voffset - 3 * gap_height, + tabRect.width + gap_loffset + gap_roffset, + 3 * gap_height, GTK_POS_BOTTOM, + gap_loffset, gap_loffset + tabRect.width); + cairo_restore(cr); + } else { + /* Draw the tab on top */ + focusRect.height -= gap_voffset; + gtk_render_extension(style, cr, + tabRect.x, tabRect.y, tabRect.width, + tabRect.height - gap_voffset, GTK_POS_BOTTOM); + + gtk_style_context_remove_region(style, GTK_STYLE_REGION_TAB); + + backRect.y += (tabRect.height - gap_voffset); + backRect.height = gap_height; + + /* Draw the gap; erase with background color before painting in + * case theme does not */ + gtk_render_background(style, cr, backRect.x, backRect.y, + backRect.width, backRect.height); + + cairo_save(cr); + cairo_rectangle(cr, backRect.x, backRect.y, backRect.width, backRect.height); + cairo_clip(cr); + + gtk_render_frame_gap(style, cr, + tabRect.x - gap_loffset, + tabRect.y + tabRect.height - gap_voffset, + tabRect.width + gap_loffset + gap_roffset, + 3 * gap_height, GTK_POS_TOP, + gap_loffset, gap_loffset + tabRect.width); + cairo_restore(cr); + } + } + } else { + gtk_render_background(style, cr, tabRect.x, tabRect.y, tabRect.width, tabRect.height); + gtk_render_frame(style, cr, tabRect.x, tabRect.y, tabRect.width, tabRect.height); + } + + if (state->focused) { + /* Paint the focus ring */ + GtkBorder padding; + gtk_style_context_get_padding(style, GetStateFlagsFromGtkWidgetState(state), &padding); + + focusRect.x += padding.left; + focusRect.width -= (padding.left + padding.right); + focusRect.y += padding.top; + focusRect.height -= (padding.top + padding.bottom); + + gtk_render_focus(style, cr, + focusRect.x, focusRect.y, focusRect.width, focusRect.height); + } + ReleaseStyleContext(style); + + return MOZ_GTK_SUCCESS; +} + +/* tab area*/ +static gint +moz_gtk_tabpanels_paint(cairo_t *cr, GdkRectangle* rect, + GtkTextDirection direction) +{ + GtkStyleContext* style = ClaimStyleContext(MOZ_GTK_TABPANELS, direction); + gtk_render_background(style, cr, rect->x, rect->y, + rect->width, rect->height); + /* + * The gap size is not needed in moz_gtk_tabpanels_paint because + * the gap will be painted with the foreground tab in moz_gtk_tab_paint. + * + * However, if moz_gtk_tabpanels_paint just uses gtk_render_frame(), + * the theme will think that there are no tabs and may draw something + * different.Hence the trick of using two clip regions, and drawing the + * gap outside each clip region, to get the correct frame for + * a tabpanel with tabs. + */ + /* left side */ + cairo_save(cr); + cairo_rectangle(cr, rect->x, rect->y, + rect->x + rect->width / 2, + rect->y + rect->height); + cairo_clip(cr); + gtk_render_frame_gap(style, cr, + rect->x, rect->y, + rect->width, rect->height, + GTK_POS_TOP, rect->width - 1, rect->width); + cairo_restore(cr); + + /* right side */ + cairo_save(cr); + cairo_rectangle(cr, rect->x + rect->width / 2, rect->y, + rect->x + rect->width, + rect->y + rect->height); + cairo_clip(cr); + gtk_render_frame_gap(style, cr, + rect->x, rect->y, + rect->width, rect->height, + GTK_POS_TOP, 0, 1); + cairo_restore(cr); + + ReleaseStyleContext(style); + return MOZ_GTK_SUCCESS; +} + +static gint +moz_gtk_tab_scroll_arrow_paint(cairo_t *cr, GdkRectangle* rect, + GtkWidgetState* state, + GtkArrowType arrow_type, + GtkTextDirection direction) +{ + GtkStyleContext* style; + gdouble arrow_angle; + gint arrow_size = MIN(rect->width, rect->height); + gint x = rect->x + (rect->width - arrow_size) / 2; + gint y = rect->y + (rect->height - arrow_size) / 2; + + if (direction == GTK_TEXT_DIR_RTL) { + arrow_type = (arrow_type == GTK_ARROW_LEFT) ? + GTK_ARROW_RIGHT : GTK_ARROW_LEFT; + } + switch (arrow_type) { + case GTK_ARROW_LEFT: + arrow_angle = ARROW_LEFT; + break; + case GTK_ARROW_RIGHT: + arrow_angle = ARROW_RIGHT; + break; + case GTK_ARROW_DOWN: + arrow_angle = ARROW_DOWN; + break; + default: + arrow_angle = ARROW_UP; + break; + } + if (arrow_type != GTK_ARROW_NONE) { + style = ClaimStyleContext(MOZ_GTK_TAB_SCROLLARROW, direction, + GetStateFlagsFromGtkWidgetState(state)); + gtk_render_arrow(style, cr, arrow_angle, + x, y, arrow_size); + ReleaseStyleContext(style); + } + return MOZ_GTK_SUCCESS; +} + +static gint +moz_gtk_menu_bar_paint(cairo_t *cr, GdkRectangle* rect, + GtkTextDirection direction) +{ + GtkStyleContext* style; + + GtkWidget* widget = GetWidget(MOZ_GTK_MENUBAR); + gtk_widget_set_direction(widget, direction); + + style = gtk_widget_get_style_context(widget); + gtk_style_context_save(style); + gtk_style_context_add_class(style, GTK_STYLE_CLASS_MENUBAR); + gtk_render_background(style, cr, rect->x, rect->y, rect->width, rect->height); + gtk_render_frame(style, cr, rect->x, rect->y, rect->width, rect->height); + gtk_style_context_restore(style); + + return MOZ_GTK_SUCCESS; +} + +static gint +moz_gtk_menu_popup_paint(cairo_t *cr, GdkRectangle* rect, + GtkTextDirection direction) +{ + GtkStyleContext* style; + + GtkWidget* widget = GetWidget(MOZ_GTK_MENUPOPUP); + gtk_widget_set_direction(widget, direction); + + // Draw a backing toplevel. This fixes themes that don't provide a menu + // background, and depend on the GtkMenu's implementation window to provide it. + moz_gtk_window_paint(cr, rect, direction); + + style = gtk_widget_get_style_context(widget); + gtk_style_context_save(style); + gtk_style_context_add_class(style, GTK_STYLE_CLASS_MENU); + + gtk_render_background(style, cr, rect->x, rect->y, rect->width, rect->height); + gtk_render_frame(style, cr, rect->x, rect->y, rect->width, rect->height); + gtk_style_context_restore(style); + + return MOZ_GTK_SUCCESS; +} + +// See gtk_menu_item_draw() for reference. +static gint +moz_gtk_menu_separator_paint(cairo_t *cr, GdkRectangle* rect, + GtkTextDirection direction) +{ + GtkStyleContext* style; + gboolean wide_separators; + gint separator_height; + gint x, y, w; + GtkBorder padding; + + style = ClaimStyleContext(MOZ_GTK_MENUSEPARATOR, direction); + gtk_style_context_get_padding(style, GTK_STATE_FLAG_NORMAL, &padding); + + x = rect->x; + y = rect->y; + w = rect->width; + + gtk_style_context_save(style); + gtk_style_context_add_class(style, GTK_STYLE_CLASS_SEPARATOR); + + gtk_style_context_get_style(style, + "wide-separators", &wide_separators, + "separator-height", &separator_height, + NULL); + + if (wide_separators) { + gtk_render_frame(style, cr, + x + padding.left, + y + padding.top, + w - padding.left - padding.right, + separator_height); + } else { + gtk_render_line(style, cr, + x + padding.left, + y + padding.top, + x + w - padding.right - 1, + y + padding.top); + } + + gtk_style_context_restore(style); + ReleaseStyleContext(style); + + return MOZ_GTK_SUCCESS; +} + +// See gtk_menu_item_draw() for reference. +static gint +moz_gtk_menu_item_paint(WidgetNodeType widget, cairo_t *cr, GdkRectangle* rect, + GtkWidgetState* state, GtkTextDirection direction) +{ + gint x, y, w, h; + + if (state->inHover && !state->disabled) { + GtkStateFlags state_flags = GetStateFlagsFromGtkWidgetState(state); + GtkStyleContext* style = + ClaimStyleContext(widget, direction, state_flags); + + bool pre_3_6 = gtk_check_version(3, 6, 0) != nullptr; + if (pre_3_6) { + // GTK+ 3.4 saves the style context and adds the menubar class to + // menubar children, but does each of these only when drawing, not + // during layout. + gtk_style_context_save(style); + if (widget == MOZ_GTK_MENUBARITEM) { + gtk_style_context_add_class(style, GTK_STYLE_CLASS_MENUBAR); + } + } + + x = rect->x; + y = rect->y; + w = rect->width; + h = rect->height; + + gtk_render_background(style, cr, x, y, w, h); + gtk_render_frame(style, cr, x, y, w, h); + + if (pre_3_6) { + gtk_style_context_restore(style); + } + ReleaseStyleContext(style); + } + + return MOZ_GTK_SUCCESS; +} + +static gint +moz_gtk_menu_arrow_paint(cairo_t *cr, GdkRectangle* rect, + GtkWidgetState* state, + GtkTextDirection direction) +{ + GtkStateFlags state_flags = GetStateFlagsFromGtkWidgetState(state); + GtkStyleContext* style = ClaimStyleContext(MOZ_GTK_MENUITEM, + direction, state_flags); + gtk_render_arrow(style, cr, + (direction == GTK_TEXT_DIR_LTR) ? ARROW_RIGHT : ARROW_LEFT, + rect->x, rect->y, rect->width); + ReleaseStyleContext(style); + return MOZ_GTK_SUCCESS; +} + +// See gtk_real_check_menu_item_draw_indicator() for reference. +static gint +moz_gtk_check_menu_item_paint(cairo_t *cr, GdkRectangle* rect, + GtkWidgetState* state, + gboolean checked, gboolean isradio, + GtkTextDirection direction) +{ + GtkStateFlags state_flags = GetStateFlagsFromGtkWidgetState(state); + GtkStyleContext* style; + GtkBorder padding; + gint indicator_size, horizontal_padding; + gint x, y; + + moz_gtk_menu_item_paint(MOZ_GTK_MENUITEM, cr, rect, state, direction); + + if (checked) { + state_flags = static_cast<GtkStateFlags>(state_flags|checkbox_check_state); + } + + style = ClaimStyleContext(isradio ? MOZ_GTK_RADIOMENUITEM_CONTAINER : + MOZ_GTK_CHECKMENUITEM_CONTAINER, + direction); + gtk_style_context_get_style(style, + "indicator-size", &indicator_size, + "horizontal-padding", &horizontal_padding, + NULL); + ReleaseStyleContext(style); + + style = ClaimStyleContext(isradio ? MOZ_GTK_RADIOMENUITEM : + MOZ_GTK_CHECKMENUITEM, + direction, state_flags); + gtk_style_context_get_padding(style, state_flags, &padding); + gint offset = padding.left + 2; + + if (direction == GTK_TEXT_DIR_RTL) { + x = rect->width - indicator_size - offset - horizontal_padding; + } + else { + x = rect->x + offset + horizontal_padding; + } + y = rect->y + (rect->height - indicator_size) / 2; + + if (gtk_check_version(3, 20, 0) == nullptr) { + gtk_render_background(style, cr, x, y, indicator_size, indicator_size); + gtk_render_frame(style, cr, x, y, indicator_size, indicator_size); + } + + if (isradio) { + gtk_render_option(style, cr, x, y, indicator_size, indicator_size); + } else { + gtk_render_check(style, cr, x, y, indicator_size, indicator_size); + } + ReleaseStyleContext(style); + + return MOZ_GTK_SUCCESS; +} + +static gint +moz_gtk_info_bar_paint(cairo_t *cr, GdkRectangle* rect, + GtkWidgetState* state) +{ + GtkStyleContext *style = + ClaimStyleContext(MOZ_GTK_INFO_BAR, GTK_TEXT_DIR_LTR, + GetStateFlagsFromGtkWidgetState(state)); + gtk_render_background(style, cr, rect->x, rect->y, rect->width, + rect->height); + gtk_render_frame(style, cr, rect->x, rect->y, rect->width, rect->height); + ReleaseStyleContext(style); + + return MOZ_GTK_SUCCESS; +} + +static void +moz_gtk_add_style_margin(GtkStyleContext* style, + gint* left, gint* top, gint* right, gint* bottom) +{ + GtkBorder margin; + + gtk_style_context_get_margin(style, GTK_STATE_FLAG_NORMAL, &margin); + + *left += margin.left; + *right += margin.right; + *top += margin.top; + *bottom += margin.bottom; +} + +static void +moz_gtk_add_style_border(GtkStyleContext* style, + gint* left, gint* top, gint* right, gint* bottom) +{ + GtkBorder border; + + gtk_style_context_get_border(style, GTK_STATE_FLAG_NORMAL, &border); + + *left += border.left; + *right += border.right; + *top += border.top; + *bottom += border.bottom; +} + +static void +moz_gtk_add_style_padding(GtkStyleContext* style, + gint* left, gint* top, gint* right, gint* bottom) +{ + GtkBorder padding; + + gtk_style_context_get_padding(style, GTK_STATE_FLAG_NORMAL, &padding); + + *left += padding.left; + *right += padding.right; + *top += padding.top; + *bottom += padding.bottom; +} + +static void moz_gtk_add_margin_border_padding(GtkStyleContext *style, + gint* left, gint* top, + gint* right, gint* bottom) +{ + moz_gtk_add_style_margin(style, left, top, right, bottom); + moz_gtk_add_style_border(style, left, top, right, bottom); + moz_gtk_add_style_padding(style, left, top, right, bottom); +} + +gint +moz_gtk_get_widget_border(WidgetNodeType widget, gint* left, gint* top, + gint* right, gint* bottom, GtkTextDirection direction, + gboolean inhtml) +{ + GtkWidget* w; + GtkStyleContext* style; + *left = *top = *right = *bottom = 0; + + switch (widget) { + case MOZ_GTK_BUTTON: + case MOZ_GTK_TOOLBAR_BUTTON: + { + style = ClaimStyleContext(MOZ_GTK_BUTTON); + + *left = *top = *right = *bottom = + gtk_container_get_border_width(GTK_CONTAINER(GetWidget(MOZ_GTK_BUTTON))); + + if (widget == MOZ_GTK_TOOLBAR_BUTTON) { + gtk_style_context_save(style); + gtk_style_context_add_class(style, "image-button"); + } + + moz_gtk_add_style_padding(style, left, top, right, bottom); + + if (widget == MOZ_GTK_TOOLBAR_BUTTON) + gtk_style_context_restore(style); + + // XXX: Subtract 1 pixel from the border to account for the added + // -moz-focus-inner border (Bug 1228281). + *left -= 1; *top -= 1; *right -= 1; *bottom -= 1; + moz_gtk_add_style_border(style, left, top, right, bottom); + + ReleaseStyleContext(style); + return MOZ_GTK_SUCCESS; + } + case MOZ_GTK_ENTRY: + { + style = ClaimStyleContext(MOZ_GTK_ENTRY); + + // XXX: Subtract 1 pixel from the padding to account for the default + // padding in forms.css. See bug 1187385. + *left = *top = *right = *bottom = -1; + moz_gtk_add_style_padding(style, left, top, right, bottom); + moz_gtk_add_style_border(style, left, top, right, bottom); + + ReleaseStyleContext(style); + return MOZ_GTK_SUCCESS; + } + case MOZ_GTK_TEXT_VIEW: + case MOZ_GTK_TREEVIEW: + { + style = ClaimStyleContext(MOZ_GTK_SCROLLED_WINDOW); + moz_gtk_add_style_border(style, left, top, right, bottom); + ReleaseStyleContext(style); + return MOZ_GTK_SUCCESS; + } + case MOZ_GTK_TREE_HEADER_CELL: + { + /* A Tree Header in GTK is just a different styled button + * It must be placed in a TreeView for getting the correct style + * assigned. + * That is why the following code is the same as for MOZ_GTK_BUTTON. + * */ + *left = *top = *right = *bottom = + gtk_container_get_border_width(GTK_CONTAINER( + GetWidget(MOZ_GTK_TREE_HEADER_CELL))); + + style = ClaimStyleContext(MOZ_GTK_TREE_HEADER_CELL); + moz_gtk_add_style_border(style, left, top, right, bottom); + moz_gtk_add_style_padding(style, left, top, right, bottom); + ReleaseStyleContext(style); + return MOZ_GTK_SUCCESS; + } + case MOZ_GTK_TREE_HEADER_SORTARROW: + w = GetWidget(MOZ_GTK_TREE_HEADER_SORTARROW); + break; + case MOZ_GTK_DROPDOWN_ENTRY: + w = GetWidget(MOZ_GTK_COMBOBOX_ENTRY_TEXTAREA); + break; + case MOZ_GTK_DROPDOWN_ARROW: + w = GetWidget(MOZ_GTK_COMBOBOX_ENTRY_BUTTON); + break; + case MOZ_GTK_DROPDOWN: + { + /* We need to account for the arrow on the dropdown, so text + * doesn't come too close to the arrow, or in some cases spill + * into the arrow. */ + gboolean wide_separators; + gint separator_width; + GtkRequisition arrow_req; + GtkBorder border; + + *left = *top = *right = *bottom = + gtk_container_get_border_width(GTK_CONTAINER( + GetWidget(MOZ_GTK_COMBOBOX_BUTTON))); + style = ClaimStyleContext(MOZ_GTK_COMBOBOX_BUTTON); + moz_gtk_add_style_padding(style, left, top, right, bottom); + moz_gtk_add_style_border(style, left, top, right, bottom); + ReleaseStyleContext(style); + + /* If there is no separator, don't try to count its width. */ + separator_width = 0; + GtkWidget* comboBoxSeparator = GetWidget(MOZ_GTK_COMBOBOX_SEPARATOR); + if (comboBoxSeparator) { + style = gtk_widget_get_style_context(comboBoxSeparator); + gtk_style_context_get_style(style, + "wide-separators", &wide_separators, + "separator-width", &separator_width, + NULL); + + if (!wide_separators) { + gtk_style_context_get_border(style, GTK_STATE_FLAG_NORMAL, + &border); + separator_width = border.left; + } + } + + gtk_widget_get_preferred_size(GetWidget(MOZ_GTK_COMBOBOX_ARROW), + NULL, &arrow_req); + + if (direction == GTK_TEXT_DIR_RTL) + *left += separator_width + arrow_req.width; + else + *right += separator_width + arrow_req.width; + + return MOZ_GTK_SUCCESS; + } + case MOZ_GTK_TABPANELS: + w = GetWidget(MOZ_GTK_TABPANELS); + break; + case MOZ_GTK_PROGRESSBAR: + w = GetWidget(MOZ_GTK_PROGRESSBAR); + break; + case MOZ_GTK_SPINBUTTON_ENTRY: + case MOZ_GTK_SPINBUTTON_UP: + case MOZ_GTK_SPINBUTTON_DOWN: + w = GetWidget(MOZ_GTK_SPINBUTTON); + break; + case MOZ_GTK_SCALE_HORIZONTAL: + case MOZ_GTK_SCALE_VERTICAL: + w = GetWidget(widget); + break; + case MOZ_GTK_FRAME: + w = GetWidget(MOZ_GTK_FRAME); + break; + case MOZ_GTK_CHECKBUTTON_CONTAINER: + case MOZ_GTK_RADIOBUTTON_CONTAINER: + { + w = GetWidget(widget); + style = gtk_widget_get_style_context(w); + + *left = *top = *right = *bottom = gtk_container_get_border_width(GTK_CONTAINER(w)); + moz_gtk_add_style_border(style, + left, top, right, bottom); + moz_gtk_add_style_padding(style, + left, top, right, bottom); + return MOZ_GTK_SUCCESS; + } + case MOZ_GTK_MENUPOPUP: + w = GetWidget(MOZ_GTK_MENUPOPUP); + break; + case MOZ_GTK_MENUBARITEM: + case MOZ_GTK_MENUITEM: + case MOZ_GTK_CHECKMENUITEM: + case MOZ_GTK_RADIOMENUITEM: + { + // Bug 1274143 for MOZ_GTK_MENUBARITEM + WidgetNodeType type = + widget == MOZ_GTK_MENUBARITEM || widget == MOZ_GTK_MENUITEM ? + MOZ_GTK_MENUITEM : MOZ_GTK_CHECKMENUITEM_CONTAINER; + style = ClaimStyleContext(type); + + moz_gtk_add_style_padding(style, left, top, right, bottom); + + ReleaseStyleContext(style); + return MOZ_GTK_SUCCESS; + } + case MOZ_GTK_INFO_BAR: + w = GetWidget(MOZ_GTK_INFO_BAR); + break; + case MOZ_GTK_TOOLTIP: + { + style = ClaimStyleContext(MOZ_GTK_TOOLTIP); + // In GTK 3 there are 6 pixels of additional margin around the box. + // See details there: + // https://github.com/GNOME/gtk/blob/5ea69a136bd7e4970b3a800390e20314665aaed2/gtk/ui/gtktooltipwindow.ui#L11 + *left = *right = *top = *bottom = 6; + + // We also need to add margin/padding/borders from Tooltip content. + // Tooltip contains horizontal box, where icon and label is put. + // We ignore icon as long as we don't have support for it. + GtkStyleContext* boxStyle = + CreateStyleForWidget(gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 0), + style); + moz_gtk_add_margin_border_padding(boxStyle, + left, top, right, bottom); + + GtkStyleContext* labelStyle = + CreateStyleForWidget(gtk_label_new(nullptr), boxStyle); + moz_gtk_add_margin_border_padding(labelStyle, + left, top, right, bottom); + + g_object_unref(labelStyle); + g_object_unref(boxStyle); + + ReleaseStyleContext(style); + return MOZ_GTK_SUCCESS; + } + case MOZ_GTK_SCROLLBAR_VERTICAL: + case MOZ_GTK_SCROLLBAR_TROUGH_HORIZONTAL: + { + if (gtk_check_version(3,20,0) == nullptr) { + style = ClaimStyleContext(widget); + moz_gtk_add_margin_border_padding(style, left, top, right, bottom); + ReleaseStyleContext(style); + if (widget == MOZ_GTK_SCROLLBAR_VERTICAL) { + style = ClaimStyleContext(MOZ_GTK_SCROLLBAR_CONTENTS_VERTICAL); + moz_gtk_add_margin_border_padding(style, left, top, right, bottom); + ReleaseStyleContext(style); + } + } else { + MozGtkScrollbarMetrics metrics; + moz_gtk_get_scrollbar_metrics(&metrics); + /* Top and bottom border for whole vertical scrollbar, top and bottom + * border for horizontal track - to correctly position thumb element */ + *top = *bottom = metrics.trough_border; + } + return MOZ_GTK_SUCCESS; + } + break; + + case MOZ_GTK_SCROLLBAR_HORIZONTAL: + case MOZ_GTK_SCROLLBAR_TROUGH_VERTICAL: + { + if (gtk_check_version(3,20,0) == nullptr) { + style = ClaimStyleContext(widget); + moz_gtk_add_margin_border_padding(style, left, top, right, bottom); + ReleaseStyleContext(style); + if (widget == MOZ_GTK_SCROLLBAR_HORIZONTAL) { + style = ClaimStyleContext(MOZ_GTK_SCROLLBAR_CONTENTS_HORIZONTAL); + moz_gtk_add_margin_border_padding(style, left, top, right, bottom); + ReleaseStyleContext(style); + } + } else { + MozGtkScrollbarMetrics metrics; + moz_gtk_get_scrollbar_metrics(&metrics); + *left = *right = metrics.trough_border; + } + return MOZ_GTK_SUCCESS; + } + break; + + case MOZ_GTK_SCROLLBAR_THUMB_HORIZONTAL: + case MOZ_GTK_SCROLLBAR_THUMB_VERTICAL: + { + if (gtk_check_version(3,20,0) == nullptr) { + style = ClaimStyleContext(widget); + moz_gtk_add_margin_border_padding(style, left, top, right, bottom); + ReleaseStyleContext(style); + } + return MOZ_GTK_SUCCESS; + } + break; + /* These widgets have no borders, since they are not containers. */ + case MOZ_GTK_CHECKBUTTON_LABEL: + case MOZ_GTK_RADIOBUTTON_LABEL: + case MOZ_GTK_SPLITTER_HORIZONTAL: + case MOZ_GTK_SPLITTER_VERTICAL: + case MOZ_GTK_CHECKBUTTON: + case MOZ_GTK_RADIOBUTTON: + case MOZ_GTK_SCROLLBAR_BUTTON: + case MOZ_GTK_SCALE_THUMB_HORIZONTAL: + case MOZ_GTK_SCALE_THUMB_VERTICAL: + case MOZ_GTK_GRIPPER: + case MOZ_GTK_PROGRESS_CHUNK: + case MOZ_GTK_PROGRESS_CHUNK_INDETERMINATE: + case MOZ_GTK_PROGRESS_CHUNK_VERTICAL_INDETERMINATE: + case MOZ_GTK_TREEVIEW_EXPANDER: + case MOZ_GTK_TOOLBAR_SEPARATOR: + case MOZ_GTK_MENUSEPARATOR: + /* These widgets have no borders.*/ + case MOZ_GTK_SPINBUTTON: + case MOZ_GTK_WINDOW: + case MOZ_GTK_RESIZER: + case MOZ_GTK_MENUARROW: + case MOZ_GTK_TOOLBARBUTTON_ARROW: + case MOZ_GTK_TOOLBAR: + case MOZ_GTK_MENUBAR: + case MOZ_GTK_TAB_SCROLLARROW: + return MOZ_GTK_SUCCESS; + default: + g_warning("Unsupported widget type: %d", widget); + return MOZ_GTK_UNKNOWN_WIDGET; + } + /* TODO - we're still missing some widget implementations */ + if (w) { + moz_gtk_add_style_border(gtk_widget_get_style_context(w), + left, top, right, bottom); + } + return MOZ_GTK_SUCCESS; +} + +gint +moz_gtk_get_tab_border(gint* left, gint* top, gint* right, gint* bottom, + GtkTextDirection direction, GtkTabFlags flags, + WidgetNodeType widget) +{ + GtkStyleContext* style = ClaimStyleContext(widget, direction, + GetStateFlagsFromGtkTabFlags(flags)); + + *left = *top = *right = *bottom = 0; + moz_gtk_add_style_padding(style, left, top, right, bottom); + + // Gtk >= 3.20 does not use those styles + if (gtk_check_version(3, 20, 0) != nullptr) { + int tab_curvature; + + gtk_style_context_get_style(style, "tab-curvature", &tab_curvature, NULL); + *left += tab_curvature; + *right += tab_curvature; + + if (flags & MOZ_GTK_TAB_FIRST) { + int initial_gap = 0; + gtk_style_context_get_style(style, "initial-gap", &initial_gap, NULL); + if (direction == GTK_TEXT_DIR_RTL) + *right += initial_gap; + else + *left += initial_gap; + } + } else { + GtkBorder margin; + + gtk_style_context_get_margin(style, GTK_STATE_FLAG_NORMAL, &margin); + *left += margin.left; + *right += margin.right; + + if (flags & MOZ_GTK_TAB_FIRST) { + ReleaseStyleContext(style); + style = ClaimStyleContext(MOZ_GTK_NOTEBOOK_HEADER, direction); + gtk_style_context_get_margin(style, GTK_STATE_FLAG_NORMAL, &margin); + *left += margin.left; + *right += margin.right; + } + } + + ReleaseStyleContext(style); + return MOZ_GTK_SUCCESS; +} + +gint +moz_gtk_get_combo_box_entry_button_size(gint* width, gint* height) +{ + /* + * We get the requisition of the drop down button, which includes + * all padding, border and focus line widths the button uses, + * as well as the minimum arrow size and its padding + * */ + GtkRequisition requisition; + + gtk_widget_get_preferred_size(GetWidget(MOZ_GTK_COMBOBOX_ENTRY_BUTTON), + NULL, &requisition); + *width = requisition.width; + *height = requisition.height; + + return MOZ_GTK_SUCCESS; +} + +gint +moz_gtk_get_tab_scroll_arrow_size(gint* width, gint* height) +{ + gint arrow_size; + + GtkStyleContext *style = ClaimStyleContext(MOZ_GTK_TABPANELS); + gtk_style_context_get_style(style, + "scroll-arrow-hlength", &arrow_size, + NULL); + ReleaseStyleContext(style); + + *height = *width = arrow_size; + + return MOZ_GTK_SUCCESS; +} + +void +moz_gtk_get_arrow_size(WidgetNodeType widgetType, gint* width, gint* height) +{ + GtkWidget* widget; + switch (widgetType) { + case MOZ_GTK_DROPDOWN: + widget = GetWidget(MOZ_GTK_COMBOBOX_ARROW); + break; + default: + widget = GetWidget(MOZ_GTK_BUTTON_ARROW); + break; + } + + GtkRequisition requisition; + gtk_widget_get_preferred_size(widget, NULL, &requisition); + *width = requisition.width; + *height = requisition.height; +} + +gint +moz_gtk_get_toolbar_separator_width(gint* size) +{ + gboolean wide_separators; + gint separator_width; + GtkBorder border; + + GtkStyleContext* style = ClaimStyleContext(MOZ_GTK_TOOLBAR); + gtk_style_context_get_style(style, + "space-size", size, + "wide-separators", &wide_separators, + "separator-width", &separator_width, + NULL); + /* Just in case... */ + gtk_style_context_get_border(style, GTK_STATE_FLAG_NORMAL, &border); + *size = MAX(*size, (wide_separators ? separator_width : border.left)); + ReleaseStyleContext(style); + return MOZ_GTK_SUCCESS; +} + +gint +moz_gtk_get_expander_size(gint* size) +{ + GtkStyleContext* style = ClaimStyleContext(MOZ_GTK_EXPANDER); + gtk_style_context_get_style(style, + "expander-size", size, + NULL); + ReleaseStyleContext(style); + return MOZ_GTK_SUCCESS; +} + +gint +moz_gtk_get_treeview_expander_size(gint* size) +{ + GtkStyleContext* style = ClaimStyleContext(MOZ_GTK_TREEVIEW); + gtk_style_context_get_style(style, "expander-size", size, NULL); + ReleaseStyleContext(style); + return MOZ_GTK_SUCCESS; +} + +// See gtk_menu_item_draw() for reference. +gint +moz_gtk_get_menu_separator_height(gint *size) +{ + gboolean wide_separators; + gint separator_height; + GtkBorder padding; + GtkStyleContext* style = ClaimStyleContext(MOZ_GTK_MENUSEPARATOR); + gtk_style_context_get_padding(style, GTK_STATE_FLAG_NORMAL, &padding); + + gtk_style_context_save(style); + gtk_style_context_add_class(style, GTK_STYLE_CLASS_SEPARATOR); + + gtk_style_context_get_style(style, + "wide-separators", &wide_separators, + "separator-height", &separator_height, + NULL); + + gtk_style_context_restore(style); + ReleaseStyleContext(style); + + *size = padding.top + padding.bottom; + *size += (wide_separators) ? separator_height : 1; + + return MOZ_GTK_SUCCESS; +} + +void +moz_gtk_get_entry_min_height(gint* height) +{ + GtkStyleContext* style = ClaimStyleContext(MOZ_GTK_ENTRY); + if (!gtk_check_version(3, 20, 0)) { + gtk_style_context_get(style, gtk_style_context_get_state(style), + "min-height", height, + nullptr); + } else { + *height = 0; + } + + GtkBorder border; + GtkBorder padding; + gtk_style_context_get_border(style, GTK_STATE_FLAG_NORMAL, &border); + gtk_style_context_get_padding(style, GTK_STATE_FLAG_NORMAL, &padding); + + *height += (border.top + border.bottom + padding.top + padding.bottom); + ReleaseStyleContext(style); +} + +void +moz_gtk_get_scale_metrics(GtkOrientation orient, gint* scale_width, + gint* scale_height) +{ + WidgetNodeType widget = (orient == GTK_ORIENTATION_HORIZONTAL) ? + MOZ_GTK_SCALE_HORIZONTAL : + MOZ_GTK_SCALE_VERTICAL; + + if (gtk_check_version(3, 20, 0) != nullptr) { + gint thumb_length, thumb_height, trough_border; + moz_gtk_get_scalethumb_metrics(orient, &thumb_length, &thumb_height); + + GtkStyleContext* style = ClaimStyleContext(widget); + gtk_style_context_get_style(style, "trough-border", &trough_border, NULL); + + if (orient == GTK_ORIENTATION_HORIZONTAL) { + *scale_width = thumb_length + trough_border * 2; + *scale_height = thumb_height + trough_border * 2; + } else { + *scale_width = thumb_height + trough_border * 2; + *scale_height = thumb_length + trough_border * 2; + } + ReleaseStyleContext(style); + } else { + GtkStyleContext* style = ClaimStyleContext(widget); + gtk_style_context_get(style, gtk_style_context_get_state(style), + "min-width", scale_width, + "min-height", scale_height, + nullptr); + ReleaseStyleContext(style); + } +} + +gint +moz_gtk_get_scalethumb_metrics(GtkOrientation orient, gint* thumb_length, gint* thumb_height) +{ + + if (gtk_check_version(3, 20, 0) != nullptr) { + WidgetNodeType widget = (orient == GTK_ORIENTATION_HORIZONTAL) ? + MOZ_GTK_SCALE_HORIZONTAL: + MOZ_GTK_SCALE_VERTICAL; + GtkStyleContext* style = ClaimStyleContext(widget); + gtk_style_context_get_style(style, + "slider_length", thumb_length, + "slider_width", thumb_height, + NULL); + ReleaseStyleContext(style); + } else { + WidgetNodeType widget = (orient == GTK_ORIENTATION_HORIZONTAL) ? + MOZ_GTK_SCALE_THUMB_HORIZONTAL: + MOZ_GTK_SCALE_THUMB_VERTICAL; + GtkStyleContext* style = ClaimStyleContext(widget); + gtk_style_context_get(style, gtk_style_context_get_state(style), + "min-width", thumb_length, + "min-height", thumb_height, + nullptr); + ReleaseStyleContext(style); + } + + return MOZ_GTK_SUCCESS; +} + +gint +moz_gtk_get_scrollbar_metrics(MozGtkScrollbarMetrics *metrics) +{ + // For Gtk >= 3.20 scrollbar metrics are ignored + MOZ_ASSERT(gtk_check_version(3, 20, 0) != nullptr); + + GtkStyleContext* style = ClaimStyleContext(MOZ_GTK_SCROLLBAR_VERTICAL); + gtk_style_context_get_style(style, + "slider_width", &metrics->slider_width, + "trough_border", &metrics->trough_border, + "stepper_size", &metrics->stepper_size, + "stepper_spacing", &metrics->stepper_spacing, + "min-slider-length", &metrics->min_slider_size, + nullptr); + ReleaseStyleContext(style); + + return MOZ_GTK_SUCCESS; +} + +/* cairo_t *cr argument has to be a system-cairo. */ +gint +moz_gtk_widget_paint(WidgetNodeType widget, cairo_t *cr, + GdkRectangle* rect, + GtkWidgetState* state, gint flags, + GtkTextDirection direction) +{ + /* A workaround for https://bugzilla.gnome.org/show_bug.cgi?id=694086 + */ + cairo_new_path(cr); + + switch (widget) { + case MOZ_GTK_BUTTON: + case MOZ_GTK_TOOLBAR_BUTTON: + if (state->depressed) { + return moz_gtk_button_paint(cr, rect, state, + (GtkReliefStyle) flags, + GetWidget(MOZ_GTK_TOGGLE_BUTTON), + direction); + } + return moz_gtk_button_paint(cr, rect, state, + (GtkReliefStyle) flags, + GetWidget(MOZ_GTK_BUTTON), + direction); + break; + case MOZ_GTK_CHECKBUTTON: + case MOZ_GTK_RADIOBUTTON: + return moz_gtk_toggle_paint(cr, rect, state, + !!(flags & MOZ_GTK_WIDGET_CHECKED), + !!(flags & MOZ_GTK_WIDGET_INCONSISTENT), + (widget == MOZ_GTK_RADIOBUTTON), + direction); + break; + case MOZ_GTK_SCROLLBAR_BUTTON: + return moz_gtk_scrollbar_button_paint(cr, rect, state, + (GtkScrollbarButtonFlags) flags, + direction); + break; + case MOZ_GTK_SCROLLBAR_HORIZONTAL: + case MOZ_GTK_SCROLLBAR_VERTICAL: + if (flags & MOZ_GTK_TRACK_OPAQUE) { + GtkStyleContext* style = + ClaimStyleContext(MOZ_GTK_WINDOW, direction); + gtk_render_background(style, cr, + rect->x, rect->y, rect->width, rect->height); + ReleaseStyleContext(style); + } + if (gtk_check_version(3,20,0) == nullptr) { + return moz_gtk_scrollbar_paint(widget, cr, rect, state, direction); + } else { + WidgetNodeType trough_widget = (widget == MOZ_GTK_SCROLLBAR_HORIZONTAL) ? + MOZ_GTK_SCROLLBAR_TROUGH_HORIZONTAL : MOZ_GTK_SCROLLBAR_TROUGH_VERTICAL; + return moz_gtk_scrollbar_trough_paint(trough_widget, cr, rect, + state, direction); + } + break; + case MOZ_GTK_SCROLLBAR_TROUGH_HORIZONTAL: + case MOZ_GTK_SCROLLBAR_TROUGH_VERTICAL: + if (gtk_check_version(3,20,0) == nullptr) { + return moz_gtk_scrollbar_trough_paint(widget, cr, rect, + state, direction); + } + break; + case MOZ_GTK_SCROLLBAR_THUMB_HORIZONTAL: + case MOZ_GTK_SCROLLBAR_THUMB_VERTICAL: + return moz_gtk_scrollbar_thumb_paint(widget, cr, rect, + state, direction); + break; + case MOZ_GTK_SCALE_HORIZONTAL: + case MOZ_GTK_SCALE_VERTICAL: + return moz_gtk_scale_paint(cr, rect, state, + (GtkOrientation) flags, direction); + break; + case MOZ_GTK_SCALE_THUMB_HORIZONTAL: + case MOZ_GTK_SCALE_THUMB_VERTICAL: + return moz_gtk_scale_thumb_paint(cr, rect, state, + (GtkOrientation) flags, direction); + break; + case MOZ_GTK_SPINBUTTON: + return moz_gtk_spin_paint(cr, rect, direction); + break; + case MOZ_GTK_SPINBUTTON_UP: + case MOZ_GTK_SPINBUTTON_DOWN: + return moz_gtk_spin_updown_paint(cr, rect, + (widget == MOZ_GTK_SPINBUTTON_DOWN), + state, direction); + break; + case MOZ_GTK_SPINBUTTON_ENTRY: + { + GtkStyleContext* style = ClaimStyleContext(MOZ_GTK_SPINBUTTON_ENTRY, + direction, GetStateFlagsFromGtkWidgetState(state)); + gint ret = moz_gtk_entry_paint(cr, rect, state, style); + ReleaseStyleContext(style); + return ret; + } + break; + case MOZ_GTK_GRIPPER: + return moz_gtk_gripper_paint(cr, rect, state, + direction); + break; + case MOZ_GTK_TREEVIEW: + return moz_gtk_treeview_paint(cr, rect, state, + direction); + break; + case MOZ_GTK_TREE_HEADER_CELL: + return moz_gtk_tree_header_cell_paint(cr, rect, state, + flags, direction); + break; + case MOZ_GTK_TREE_HEADER_SORTARROW: + return moz_gtk_tree_header_sort_arrow_paint(cr, rect, + state, + (GtkArrowType) flags, + direction); + break; + case MOZ_GTK_TREEVIEW_EXPANDER: + return moz_gtk_treeview_expander_paint(cr, rect, state, + (GtkExpanderStyle) flags, direction); + break; + case MOZ_GTK_ENTRY: + { + GtkStyleContext* style = ClaimStyleContext(MOZ_GTK_ENTRY, + direction, GetStateFlagsFromGtkWidgetState(state)); + gint ret = moz_gtk_entry_paint(cr, rect, state, style); + ReleaseStyleContext(style); + return ret; + } + case MOZ_GTK_TEXT_VIEW: + return moz_gtk_text_view_paint(cr, rect, state, direction); + break; + case MOZ_GTK_DROPDOWN: + return moz_gtk_combo_box_paint(cr, rect, state, direction); + break; + case MOZ_GTK_DROPDOWN_ARROW: + return moz_gtk_combo_box_entry_button_paint(cr, rect, + state, flags, direction); + break; + case MOZ_GTK_DROPDOWN_ENTRY: + { + GtkStyleContext* style = ClaimStyleContext(MOZ_GTK_COMBOBOX_ENTRY_TEXTAREA, + direction, GetStateFlagsFromGtkWidgetState(state)); + gint ret = moz_gtk_entry_paint(cr, rect, state, style); + ReleaseStyleContext(style); + return ret; + } + break; + case MOZ_GTK_CHECKBUTTON_CONTAINER: + case MOZ_GTK_RADIOBUTTON_CONTAINER: + return moz_gtk_container_paint(cr, rect, state, widget, direction); + break; + case MOZ_GTK_CHECKBUTTON_LABEL: + case MOZ_GTK_RADIOBUTTON_LABEL: + return moz_gtk_toggle_label_paint(cr, rect, state, + (widget == MOZ_GTK_RADIOBUTTON_LABEL), + direction); + break; + case MOZ_GTK_TOOLBAR: + return moz_gtk_toolbar_paint(cr, rect, direction); + break; + case MOZ_GTK_TOOLBAR_SEPARATOR: + return moz_gtk_toolbar_separator_paint(cr, rect, + direction); + break; + case MOZ_GTK_TOOLTIP: + return moz_gtk_tooltip_paint(cr, rect, direction); + break; + case MOZ_GTK_FRAME: + return moz_gtk_frame_paint(cr, rect, direction); + break; + case MOZ_GTK_RESIZER: + return moz_gtk_resizer_paint(cr, rect, state, + direction); + break; + case MOZ_GTK_PROGRESSBAR: + return moz_gtk_progressbar_paint(cr, rect, direction); + break; + case MOZ_GTK_PROGRESS_CHUNK: + case MOZ_GTK_PROGRESS_CHUNK_INDETERMINATE: + case MOZ_GTK_PROGRESS_CHUNK_VERTICAL_INDETERMINATE: + return moz_gtk_progress_chunk_paint(cr, rect, + direction, widget); + break; + case MOZ_GTK_TAB_TOP: + case MOZ_GTK_TAB_BOTTOM: + return moz_gtk_tab_paint(cr, rect, state, + (GtkTabFlags) flags, direction, widget); + break; + case MOZ_GTK_TABPANELS: + return moz_gtk_tabpanels_paint(cr, rect, direction); + break; + case MOZ_GTK_TAB_SCROLLARROW: + return moz_gtk_tab_scroll_arrow_paint(cr, rect, state, + (GtkArrowType) flags, direction); + break; + case MOZ_GTK_MENUBAR: + return moz_gtk_menu_bar_paint(cr, rect, direction); + break; + case MOZ_GTK_MENUPOPUP: + return moz_gtk_menu_popup_paint(cr, rect, direction); + break; + case MOZ_GTK_MENUSEPARATOR: + return moz_gtk_menu_separator_paint(cr, rect, + direction); + break; + case MOZ_GTK_MENUBARITEM: + case MOZ_GTK_MENUITEM: + return moz_gtk_menu_item_paint(widget, cr, rect, state, direction); + break; + case MOZ_GTK_MENUARROW: + return moz_gtk_menu_arrow_paint(cr, rect, state, + direction); + break; + case MOZ_GTK_TOOLBARBUTTON_ARROW: + return moz_gtk_arrow_paint(cr, rect, state, + (GtkArrowType) flags, direction); + break; + case MOZ_GTK_CHECKMENUITEM: + case MOZ_GTK_RADIOMENUITEM: + return moz_gtk_check_menu_item_paint(cr, rect, state, + (gboolean) flags, + (widget == MOZ_GTK_RADIOMENUITEM), + direction); + break; + case MOZ_GTK_SPLITTER_HORIZONTAL: + return moz_gtk_vpaned_paint(cr, rect, state); + break; + case MOZ_GTK_SPLITTER_VERTICAL: + return moz_gtk_hpaned_paint(cr, rect, state); + break; + case MOZ_GTK_WINDOW: + return moz_gtk_window_paint(cr, rect, direction); + break; + case MOZ_GTK_INFO_BAR: + return moz_gtk_info_bar_paint(cr, rect, state); + break; + default: + g_warning("Unknown widget type: %d", widget); + } + + return MOZ_GTK_UNKNOWN_WIDGET; +} + +GtkWidget* moz_gtk_get_scrollbar_widget(void) +{ + return GetWidget(MOZ_GTK_SCROLLBAR_HORIZONTAL); +} + +gboolean moz_gtk_has_scrollbar_buttons(void) +{ + gboolean backward, forward, secondary_backward, secondary_forward; + MOZ_ASSERT(is_initialized, "Forgot to call moz_gtk_init()"); + GtkStyleContext* style = ClaimStyleContext(MOZ_GTK_SCROLLBAR_VERTICAL); + gtk_style_context_get_style(style, + "has-backward-stepper", &backward, + "has-forward-stepper", &forward, + "has-secondary-backward-stepper", &secondary_backward, + "has-secondary-forward-stepper", &secondary_forward, + NULL); + ReleaseStyleContext(style); + + return backward | forward | secondary_forward | secondary_forward; +} + +gint +moz_gtk_shutdown() +{ + /* This will destroy all of our widgets */ + ResetWidgetCache(); + + is_initialized = FALSE; + + return MOZ_GTK_SUCCESS; +} |