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-rw-r--r--widget/gtk/gtk3drawing.cpp2843
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", &notebook_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;
+}