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/* 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/. */
"use strict";
const React = require("devtools/client/shared/vendor/react");
const ReactDOM = require("devtools/client/shared/vendor/react-dom");
const Draggable = React.createFactory(require("devtools/client/shared/components/splitter/draggable"));
const { DOM: dom, PropTypes } = React;
/**
* This component represents a Splitter. The splitter supports vertical
* as well as horizontal mode.
*/
const SplitBox = React.createClass({
displayName: "SplitBox",
propTypes: {
// Custom class name. You can use more names separated by a space.
className: PropTypes.string,
// Initial size of controlled panel.
initialSize: PropTypes.number,
// Left/top panel
startPanel: PropTypes.any,
// Min panel size.
minSize: PropTypes.number,
// Max panel size.
maxSize: PropTypes.number,
// Right/bottom panel
endPanel: PropTypes.any,
// True if the right/bottom panel should be controlled.
endPanelControl: PropTypes.bool,
// Size of the splitter handle bar.
splitterSize: PropTypes.number,
// True if the splitter bar is vertical (default is vertical).
vert: PropTypes.bool
},
getDefaultProps() {
return {
splitterSize: 5,
vert: true,
endPanelControl: false
};
},
/**
* The state stores the current orientation (vertical or horizontal)
* and the current size (width/height). All these values can change
* during the component's life time.
*/
getInitialState() {
return {
vert: this.props.vert,
width: this.props.initialWidth || this.props.initialSize,
height: this.props.initialHeight || this.props.initialSize
};
},
// Dragging Events
/**
* Set 'resizing' cursor on entire document during splitter dragging.
* This avoids cursor-flickering that happens when the mouse leaves
* the splitter bar area (happens frequently).
*/
onStartMove() {
const splitBox = ReactDOM.findDOMNode(this);
const doc = splitBox.ownerDocument;
let defaultCursor = doc.documentElement.style.cursor;
doc.documentElement.style.cursor = (this.state.vert ? "ew-resize" : "ns-resize");
splitBox.classList.add("dragging");
this.setState({
defaultCursor: defaultCursor
});
},
onStopMove() {
const splitBox = ReactDOM.findDOMNode(this);
const doc = splitBox.ownerDocument;
doc.documentElement.style.cursor = this.state.defaultCursor;
splitBox.classList.remove("dragging");
},
/**
* Adjust size of the controlled panel. Depending on the current
* orientation we either remember the width or height of
* the splitter box.
*/
onMove(x, y) {
const node = ReactDOM.findDOMNode(this);
const doc = node.ownerDocument;
const win = doc.defaultView;
let size;
let { endPanelControl } = this.props;
if (this.state.vert) {
// Switch the control flag in case of RTL. Note that RTL
// has impact on vertical splitter only.
let dir = win.getComputedStyle(doc.documentElement).direction;
if (dir == "rtl") {
endPanelControl = !endPanelControl;
}
size = endPanelControl ?
(node.offsetLeft + node.offsetWidth) - x :
x - node.offsetLeft;
this.setState({
width: size
});
} else {
size = endPanelControl ?
(node.offsetTop + node.offsetHeight) - y :
y - node.offsetTop;
this.setState({
height: size
});
}
},
// Rendering
render() {
const vert = this.state.vert;
const { startPanel, endPanel, endPanelControl, minSize,
maxSize, splitterSize } = this.props;
let style = Object.assign({}, this.props.style);
// Calculate class names list.
let classNames = ["split-box"];
classNames.push(vert ? "vert" : "horz");
if (this.props.className) {
classNames = classNames.concat(this.props.className.split(" "));
}
let leftPanelStyle;
let rightPanelStyle;
// Set proper size for panels depending on the current state.
if (vert) {
leftPanelStyle = {
maxWidth: endPanelControl ? null : maxSize,
minWidth: endPanelControl ? null : minSize,
width: endPanelControl ? null : this.state.width
};
rightPanelStyle = {
maxWidth: endPanelControl ? maxSize : null,
minWidth: endPanelControl ? minSize : null,
width: endPanelControl ? this.state.width : null
};
} else {
leftPanelStyle = {
maxHeight: endPanelControl ? null : maxSize,
minHeight: endPanelControl ? null : minSize,
height: endPanelControl ? null : this.state.height
};
rightPanelStyle = {
maxHeight: endPanelControl ? maxSize : null,
minHeight: endPanelControl ? minSize : null,
height: endPanelControl ? this.state.height : null
};
}
// Calculate splitter size
let splitterStyle = {
flex: "0 0 " + splitterSize + "px"
};
return (
dom.div({
className: classNames.join(" "),
style: style },
startPanel ?
dom.div({
className: endPanelControl ? "uncontrolled" : "controlled",
style: leftPanelStyle},
startPanel
) : null,
Draggable({
className: "splitter",
style: splitterStyle,
onStart: this.onStartMove,
onStop: this.onStopMove,
onMove: this.onMove
}),
endPanel ?
dom.div({
className: endPanelControl ? "controlled" : "uncontrolled",
style: rightPanelStyle},
endPanel
) : null
)
);
}
});
module.exports = SplitBox;
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