devextreme
Version:
HTML5 JavaScript Component Suite for Responsive Web Development
216 lines (212 loc) • 7.79 kB
JavaScript
/**
* DevExtreme (cjs/viz/chart_components/scroll_bar.js)
* Version: 22.1.9
* Build date: Tue Apr 18 2023
*
* Copyright (c) 2012 - 2023 Developer Express Inc. ALL RIGHTS RESERVED
* Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
*/
"use strict";
exports.ScrollBar = void 0;
var _events_engine = _interopRequireDefault(require("../../events/core/events_engine"));
var _index = require("../../events/utils/index");
var _extend = require("../../core/utils/extend");
var _translator2d = require("../translators/translator2d");
var _type = require("../../core/utils/type");
var _common = require("../../core/utils/common");
var _drag = require("../../events/drag");
function _interopRequireDefault(obj) {
return obj && obj.__esModule ? obj : {
default: obj
}
}
var _min = Math.min;
var _max = Math.max;
var MIN_SCROLL_BAR_SIZE = 2;
var ScrollBar = function(renderer, group) {
this._translator = new _translator2d.Translator2D({}, {}, {});
this._scroll = renderer.rect().append(group);
this._addEvents()
};
exports.ScrollBar = ScrollBar;
function _getXCoord(canvas, pos, offset, width) {
var x = 0;
if ("right" === pos) {
x = canvas.width - canvas.right + offset
} else if ("left" === pos) {
x = canvas.left - offset - width
}
return x
}
function _getYCoord(canvas, pos, offset, width) {
var y = 0;
if ("top" === pos) {
y = canvas.top - offset
} else if ("bottom" === pos) {
y = canvas.height - canvas.bottom + width + offset
}
return y
}
ScrollBar.prototype = {
_addEvents: function() {
var _this = this;
var scrollElement = this._scroll.element;
_events_engine.default.on(scrollElement, _drag.start, (function(e) {
(0, _index.fireEvent)({
type: "dxc-scroll-start",
originalEvent: e,
target: scrollElement
})
}));
_events_engine.default.on(scrollElement, _drag.move, (function(e) {
var dX = -e.offset.x * _this._scale;
var dY = -e.offset.y * _this._scale;
var lx = _this._offset - (_this._layoutOptions.vertical ? dY : dX) / _this._scale;
_this._applyPosition(lx, lx + _this._translator.canvasLength / _this._scale);
(0, _index.fireEvent)({
type: "dxc-scroll-move",
originalEvent: e,
target: scrollElement,
offset: {
x: dX,
y: dY
}
})
}));
_events_engine.default.on(scrollElement, _drag.end, (function(e) {
(0, _index.fireEvent)({
type: "dxc-scroll-end",
originalEvent: e,
target: scrollElement,
offset: {
x: -e.offset.x * _this._scale,
y: -e.offset.y * _this._scale
}
})
}))
},
update: function(options) {
var position = options.position;
var isVertical = options.rotated;
var defaultPosition = isVertical ? "right" : "top";
var secondaryPosition = isVertical ? "left" : "bottom";
if (position !== defaultPosition && position !== secondaryPosition) {
position = defaultPosition
}
this._scroll.attr({
rotate: !options.rotated ? -90 : 0,
rotateX: 0,
rotateY: 0,
fill: options.color,
width: options.width,
opacity: options.opacity
});
this._layoutOptions = {
width: options.width,
offset: options.offset,
vertical: isVertical,
position: position
};
return this
},
init: function(range, stick) {
var isDiscrete = "discrete" === range.axisType;
this._translateWithOffset = isDiscrete && !stick ? 1 : 0;
this._translator.update((0, _extend.extend)({}, range, {
minVisible: null,
maxVisible: null,
visibleCategories: null
}, isDiscrete && {
min: null,
max: null
} || {}), this._canvas, {
isHorizontal: !this._layoutOptions.vertical,
stick: stick
});
return this
},
getOptions: function() {
return this._layoutOptions
},
setPane: function(panes) {
var position = this._layoutOptions.position;
var pane;
if ("left" === position || "top" === position) {
pane = panes[0]
} else {
pane = panes[panes.length - 1]
}
this.pane = pane.name;
return this
},
updateSize: function(canvas) {
this._canvas = (0, _extend.extend)({}, canvas);
var options = this._layoutOptions;
var pos = options.position;
var offset = options.offset;
var width = options.width;
this._scroll.attr({
translateX: _getXCoord(canvas, pos, offset, width),
translateY: _getYCoord(canvas, pos, offset, width)
})
},
getMultipleAxesSpacing: function() {
return 0
},
estimateMargins: function() {
return this.getMargins()
},
getMargins: function() {
var options = this._layoutOptions;
var margins = {
left: 0,
top: 0,
right: 0,
bottom: 0
};
margins[options.position] = options.width + options.offset;
return margins
},
shift: function(margins) {
var _that$_scroll$attr, _that$_scroll$attr2;
var options = this._layoutOptions;
var side = options.position;
var isVertical = options.vertical;
var attr = {
translateX: null !== (_that$_scroll$attr = this._scroll.attr("translateX")) && void 0 !== _that$_scroll$attr ? _that$_scroll$attr : 0,
translateY: null !== (_that$_scroll$attr2 = this._scroll.attr("translateY")) && void 0 !== _that$_scroll$attr2 ? _that$_scroll$attr2 : 0
};
var shift = margins[side];
attr[isVertical ? "translateX" : "translateY"] += ("left" === side || "top" === side ? -1 : 1) * shift;
this._scroll.attr(attr)
},
hideTitle: _common.noop,
hideOuterElements: _common.noop,
setPosition: function(min, max) {
var translator = this._translator;
var minPoint = (0, _type.isDefined)(min) ? translator.translate(min, -this._translateWithOffset) : translator.translate("canvas_position_start");
var maxPoint = (0, _type.isDefined)(max) ? translator.translate(max, this._translateWithOffset) : translator.translate("canvas_position_end");
this._offset = _min(minPoint, maxPoint);
this._scale = translator.getScale(min, max);
this._applyPosition(_min(minPoint, maxPoint), _max(minPoint, maxPoint))
},
customPositionIsAvailable: function() {
return false
},
dispose: function() {
this._scroll.dispose();
this._scroll = this._translator = null
},
_applyPosition: function(x1, x2) {
var visibleArea = this._translator.getCanvasVisibleArea();
x1 = _max(x1, visibleArea.min);
x1 = _min(x1, visibleArea.max);
x2 = _min(x2, visibleArea.max);
x2 = _max(x2, visibleArea.min);
var height = Math.abs(x2 - x1);
this._scroll.attr({
y: x1,
height: height < MIN_SCROLL_BAR_SIZE ? MIN_SCROLL_BAR_SIZE : height
})
}
};