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author | Richard Worth <rdworth@gmail.com> | 2008-05-25 04:04:57 +0000 |
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committer | Richard Worth <rdworth@gmail.com> | 2008-05-25 04:04:57 +0000 |
commit | c0f0e4d2ccd3cc317d25baa446bd4af150a41d01 (patch) | |
tree | a5721c5f096384d174510840c0face3d5f073a6c /ui/source/ui.draggable.js | |
parent | 0f2369e8d8975d9128fb45192502a7e4206909d2 (diff) | |
download | jquery-ui-c0f0e4d2ccd3cc317d25baa446bd4af150a41d01.tar.gz jquery-ui-c0f0e4d2ccd3cc317d25baa446bd4af150a41d01.zip |
merged experimental mouse branch
Diffstat (limited to 'ui/source/ui.draggable.js')
-rw-r--r-- | ui/source/ui.draggable.js | 142 |
1 files changed, 67 insertions, 75 deletions
diff --git a/ui/source/ui.draggable.js b/ui/source/ui.draggable.js index b90cea57c..73e91a238 100644 --- a/ui/source/ui.draggable.js +++ b/ui/source/ui.draggable.js @@ -10,48 +10,42 @@ * Depends:
* ui.core.js
*
- * Revision: $Id: ui.draggable.js 5618 2008-05-16 16:28:05Z scott.gonzalez $
+ * Revision: $Id: ui.draggable.js 5672 2008-05-23 04:11:30Z braeker $
*/
;(function($) {
- $.widget("ui.draggable", {
+ $.widget("ui.draggable", $.extend($.ui.mouse, {
init: function() {
//Initialize needed constants
var o = this.options;
-
- //Initialize mouse events for interaction
- this.element.mouse({
- executor: this,
- delay: o.delay,
- distance: o.distance,
- dragPrevention: o.cancel,
- start: this.start,
- stop: this.stop,
- drag: this.drag,
- condition: function(e) {
- var handle = !this.options.handle || !$(this.options.handle, this.element).length ? true : false;
- if(!handle) $(this.options.handle, this.element).each(function() { if(this == e.target) handle = true; });
- return !(e.target.className.indexOf("ui-resizable-handle") != -1 || this.options.disabled) && handle;
- }
- });
+
+ this.mouseInit();
//Position the node
if(o.helper == 'original' && !(/(relative|absolute|fixed)/).test(this.element.css('position')))
this.element.css('position', 'relative');
},
- start: function(e) {
-
+ mouseStart: function(e) {
var o = this.options;
+
+ if (o.disabled || $(e.target).is('.ui-resizable-handle')) return false;
+
+ var handle = !this.options.handle || !$(this.options.handle, this.element).length ? true : false;
+ if(!handle) $(this.options.handle, this.element).each(function() {
+ if(this == e.target) handle = true;
+ });
+ if (!handle) return false;
+
if($.ui.ddmanager) $.ui.ddmanager.current = this;
//Create and append the visible helper
this.helper = $.isFunction(o.helper) ? $(o.helper.apply(this.element[0], [e])) : (o.helper == 'clone' ? this.element.clone() : this.element);
if(!this.helper.parents('body').length) this.helper.appendTo((o.appendTo == 'parent' ? this.element[0].parentNode : o.appendTo));
if(this.helper[0] != this.element[0] && !(/(fixed|absolute)/).test(this.helper.css("position"))) this.helper.css("position", "absolute");
-
+
/*
* - Position generation -
* This block generates everything position related - it's the core of draggables.
@@ -61,42 +55,42 @@ left: (parseInt(this.element.css("marginLeft"),10) || 0),
top: (parseInt(this.element.css("marginTop"),10) || 0)
};
-
+
this.cssPosition = this.helper.css("position"); //Store the helper's css position
this.offset = this.element.offset(); //The element's absolute position on the page
this.offset = { //Substract the margins from the element's absolute offset
top: this.offset.top - this.margins.top,
left: this.offset.left - this.margins.left
};
-
+
this.offset.click = { //Where the click happened, relative to the element
left: e.pageX - this.offset.left,
top: e.pageY - this.offset.top
};
-
+
this.offsetParent = this.helper.offsetParent(); var po = this.offsetParent.offset(); //Get the offsetParent and cache its position
this.offset.parent = { //Store its position plus border
top: po.top + (parseInt(this.offsetParent.css("borderTopWidth"),10) || 0),
left: po.left + (parseInt(this.offsetParent.css("borderLeftWidth"),10) || 0)
};
-
+
var p = this.element.position(); //This is a relative to absolute position minus the actual position calculation - only used for relative positioned helpers
this.offset.relative = this.cssPosition == "relative" ? {
top: p.top - (parseInt(this.helper.css("top"),10) || 0) + this.offsetParent[0].scrollTop,
left: p.left - (parseInt(this.helper.css("left"),10) || 0) + this.offsetParent[0].scrollLeft
} : { top: 0, left: 0 };
-
+
this.originalPosition = this.generatePosition(e); //Generate the original position
this.helperProportions = { width: this.helper.outerWidth(), height: this.helper.outerHeight() };//Cache the helper size
-
+
if(o.cursorAt) {
if(o.cursorAt.left != undefined) this.offset.click.left = o.cursorAt.left;
if(o.cursorAt.right != undefined) this.offset.click.left = this.helperProportions.width - o.cursorAt.right;
if(o.cursorAt.top != undefined) this.offset.click.top = o.cursorAt.top;
if(o.cursorAt.bottom != undefined) this.offset.click.top = this.helperProportions.height - o.cursorAt.bottom;
}
-
-
+
+
/*
* - Position constraining -
* Here we prepare position constraining like grid and containment.
@@ -108,7 +102,7 @@ if(!(/^(document|window|parent)$/).test(o.containment)) {
var ce = $(o.containment)[0];
var co = $(o.containment).offset();
-
+
this.containment = [
co.left + (parseInt($(ce).css("borderLeftWidth"),10) || 0) - this.offset.relative.left - this.offset.parent.left,
co.top + (parseInt($(ce).css("borderTopWidth"),10) || 0) - this.offset.relative.top - this.offset.parent.top,
@@ -117,16 +111,14 @@ ];
}
}
-
-
+
//Call plugins and callbacks
this.propagate("start", e);
-
+
this.helperProportions = { width: this.helper.outerWidth(), height: this.helper.outerHeight() };//Recache the helper size
if ($.ui.ddmanager && !o.dropBehaviour) $.ui.ddmanager.prepareOffsets(this, e);
-
- return false;
-
+
+ return true;
},
convertPositionTo: function(d, pos) {
if(!pos) pos = this.position;
@@ -167,9 +159,8 @@ + (this.cssPosition == "fixed" ? 0 : this.offsetParent[0].scrollLeft) // The offsetParent's scroll position, not if the element is fixed
)
};
-
- if(!this.originalPosition) return position; //If we are not dragging yet, we won't check for options
+ if(!this.originalPosition) return position; //If we are not dragging yet, we won't check for options
/*
* - Position constraining -
@@ -185,30 +176,30 @@ if(o.grid) {
var top = this.originalPosition.top + Math.round((position.top - this.originalPosition.top) / o.grid[1]) * o.grid[1];
position.top = this.containment ? (!(top < this.containment[1] || top > this.containment[3]) ? top : (!(top < this.containment[1]) ? top - o.grid[1] : top + o.grid[1])) : top;
-
+
var left = this.originalPosition.left + Math.round((position.left - this.originalPosition.left) / o.grid[0]) * o.grid[0];
position.left = this.containment ? (!(left < this.containment[0] || left > this.containment[2]) ? left : (!(left < this.containment[0]) ? left - o.grid[0] : left + o.grid[0])) : left;
}
return position;
},
- drag: function(e) {
-
+ mouseDrag: function(e) {
+
//Compute the helpers position
this.position = this.generatePosition(e);
this.positionAbs = this.convertPositionTo("absolute");
-
+
//Call plugins and callbacks and use the resulting position if something is returned
this.position = this.propagate("drag", e) || this.position;
if(!this.options.axis || this.options.axis == "x") this.helper[0].style.left = this.position.left+'px';
if(!this.options.axis || this.options.axis == "y") this.helper[0].style.top = this.position.top+'px';
if($.ui.ddmanager) $.ui.ddmanager.drag(this, e);
+
return false;
-
},
- stop: function(e) {
-
+ mouseStop: function(e) {
+
//If we are using droppables, inform the manager about the drop
if ($.ui.ddmanager && !this.options.dropBehaviour)
$.ui.ddmanager.drop(this, e);
@@ -223,9 +214,8 @@ this.propagate("stop", e);
this.clear();
}
-
- return false;
+ return false;
},
clear: function() {
if(this.options.helper != 'original' && !this.cancelHelperRemoval) this.helper.remove();
@@ -236,7 +226,7 @@ // From now on bulk stuff - mainly helpers
plugins: {},
- ui: function(e) {
+ uiHash: function(e) {
return {
helper: this.helper,
position: this.position,
@@ -245,24 +235,26 @@ };
},
propagate: function(n,e) {
- $.ui.plugin.call(this, n, [e, this.ui()]);
- return this.element.triggerHandler(n == "drag" ? n : "drag"+n, [e, this.ui()], this.options[n]);
+ $.ui.plugin.call(this, n, [e, this.uiHash()]);
+ return this.element.triggerHandler(n == "drag" ? n : "drag"+n, [e, this.uiHash()], this.options[n]);
},
destroy: function() {
if(!this.element.data('draggable')) return;
- this.element.removeData("draggable").unbind(".draggable").mouse("destroy");
+ this.element.removeData("draggable").unbind(".draggable");
+ this.mouseDestroy();
+ }
+ }));
+
+ $.extend($.ui.draggable, {
+ defaults: {
+ distance: 0,
+ delay: 0,
+ cancel: ":input,button",
+ helper: "original",
+ appendTo: "parent"
}
});
-
- $.ui.draggable.defaults = {
- helper: "original",
- appendTo: "parent",
- cancel: ['input','textarea','button','select','option'],
- distance: 1,
- delay: 0
- };
-
-
+
$.ui.plugin.add("draggable", "cursor", {
start: function(e, ui) {
var t = $('body');
@@ -273,7 +265,7 @@ if (ui.options._cursor) $('body').css("cursor", ui.options._cursor);
}
});
-
+
$.ui.plugin.add("draggable", "zIndex", {
start: function(e, ui) {
var t = $(ui.helper);
@@ -284,7 +276,7 @@ if(ui.options._zIndex) $(ui.helper).css('zIndex', ui.options._zIndex);
}
});
-
+
$.ui.plugin.add("draggable", "opacity", {
start: function(e, ui) {
var t = $(ui.helper);
@@ -319,7 +311,7 @@ var i = $(this).data("draggable");
o.scrollSensitivity = o.scrollSensitivity || 20;
o.scrollSpeed = o.scrollSpeed || 20;
-
+
i.overflowY = function(el) {
do { if(/auto|scroll/.test(el.css('overflow')) || (/auto|scroll/).test(el.css('overflow-y'))) return el; el = el.parent(); } while (el[0].parentNode);
return $(document);
@@ -337,7 +329,7 @@ var o = ui.options;
var i = $(this).data("draggable");
-
+
if(i.overflowY[0] != document && i.overflowY[0].tagName != 'HTML') {
if((i.overflowYOffset.top + i.overflowY[0].offsetHeight) - e.pageY < o.scrollSensitivity)
i.overflowY[0].scrollTop = i.overflowY[0].scrollTop + o.scrollSpeed;
@@ -362,7 +354,7 @@ if($(window).width() - (e.pageX - $(document).scrollLeft()) < o.scrollSensitivity)
$(document).scrollLeft($(document).scrollLeft() + o.scrollSpeed);
}
-
+
}
});
@@ -382,20 +374,20 @@ },
drag: function(e, ui) {
-
+
var inst = $(this).data("draggable");
var d = ui.options.snapTolerance || 20;
var x1 = ui.absolutePosition.left, x2 = x1 + inst.helperProportions.width,
y1 = ui.absolutePosition.top, y2 = y1 + inst.helperProportions.height;
-
+
for (var i = inst.snapElements.length - 1; i >= 0; i--){
-
+
var l = inst.snapElements[i].left, r = l + inst.snapElements[i].width,
t = inst.snapElements[i].top, b = t + inst.snapElements[i].height;
-
+
//Yes, I know, this is insane ;)
if(!((l-d < x1 && x1 < r+d && t-d < y1 && y1 < b+d) || (l-d < x1 && x1 < r+d && t-d < y2 && y2 < b+d) || (l-d < x2 && x2 < r+d && t-d < y1 && y1 < b+d) || (l-d < x2 && x2 < r+d && t-d < y2 && y2 < b+d))) continue;
-
+
if(ui.options.snapMode != 'inner') {
var ts = Math.abs(t - y2) <= 20;
var bs = Math.abs(b - y1) <= 20;
@@ -417,7 +409,7 @@ if(ls) ui.position.left = inst.convertPositionTo("relative", { top: 0, left: l }).left;
if(rs) ui.position.left = inst.convertPositionTo("relative", { top: 0, left: r - inst.helperProportions.width }).left;
}
-
+
};
}
});
@@ -463,7 +455,7 @@ //Cache the width/height of the new helper
var height = inst.options.placeholderElement ? $(inst.options.placeholderElement, $(inst.options.items, inst.element)).innerHeight() : $(inst.options.items, inst.element).innerHeight();
var width = inst.options.placeholderElement ? $(inst.options.placeholderElement, $(inst.options.items, inst.element)).innerWidth() : $(inst.options.items, inst.element).innerWidth();
-
+
//Now we fake the start of dragging for the sortable instance,
//by cloning the list group item, appending it to the sortable and using it as inst.currentItem
//We can then fire the start event of the sortable with our passed browser event, and our own helper (so it doesn't create a new one)
@@ -483,7 +475,7 @@ instDraggable.propagate("toSortable", e);
}
-
+
//Provided we did all the previous steps, we can fire the drag event of the sortable on every draggable drag, when it intersects with the sortable
if(inst.currentItem) inst.drag(e);
@@ -524,4 +516,4 @@ }
});
-})(jQuery);
\ No newline at end of file +})(jQuery);
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