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Implemented isReusable feature. Not fully tested.

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This commit is contained in:
Valera Rozuvan
2013-01-17 18:26:12 +02:00
committed by Alexander Kryklia
parent 98977cabdb
commit 5001680356
3 changed files with 257 additions and 87 deletions
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329
common/static/js/capa/drag_and_drop/draggables.js
View File

@@ -59,8 +59,156 @@ define(['logme', 'update_input'], function (logme, updateInput) {
}
}
function makeDraggableCopy() {
var draggableObj, obj;
draggableObj = {
'originalConfigObj': this.originalConfigObj,
'stateDraggablesIndex': /* this.stateDraggablesIndex */ null, // Will be set.
'id': this.id,
'isReusable': this.isReusable,
'isOriginal': false,
'x': this.x,
'y': this.y,
'zIndex': this.zIndex,
// Not needed, since a copy will never return to a container element.
'containerEl': null,
'iconEl': /* this.iconEl */ null, // Will be created.
'iconElBGColor': this.iconElBGColor,
'iconElPadding': this.iconElPadding,
'iconElBorder': this.iconElBorder,
'iconElLeftOffset': this.iconElLeftOffset,
'iconWidth': this.iconWidth,
'iconHeight': this.iconHeight,
'iconWidthSmall': this.iconWidthSmall,
'iconHeightSmall': this.iconHeightSmall,
'labelEl': /* this.labelEl */ null, // Will be created.
'labelWidth': this.labelWidth,
'hasLoaded': this.hasLoaded,
'inContainer': this.inContainer,
'mousePressed': this.mousePressed,
'onTarget': this.onTarget,
'onTargetIndex': this.onTargetIndex,
'state': this.state,
'mouseDown': this.mouseDown,
'mouseUp': this.mouseUp,
'mouseMove': this.mouseMove,
'checkLandingElement': this.checkLandingElement,
'checkIfOnTarget': this.checkIfOnTarget,
'snapToTarget': this.snapToTarget,
'correctZIndexes': this.correctZIndexes,
'moveBackToSlider': this.moveBackToSlider,
'moveDraggableToTarget': this.moveDraggableToTarget,
'moveDraggableToXY': this.moveDraggableToXY,
'makeDraggableCopy': this.makeDraggableCopy
};
obj = draggableObj.originalConfigObj;
if (obj.icon.length > 0) {
draggableObj.iconEl = $('<img />');
draggableObj.iconEl.attr('src', obj.icon);
draggableObj.iconEl.load(function () {
draggableObj.iconEl.css('position', 'absolute');
draggableObj.iconEl.css('width', draggableObj.iconWidthSmall);
draggableObj.iconEl.css('height', draggableObj.iconHeightSmall);
draggableObj.iconEl.css('left', 50 - draggableObj.iconWidthSmall * 0.5);
if (obj.label.length > 0) {
draggableObj.iconEl.css('top', 5);
} else {
draggableObj.iconEl.css('top', 50 - draggableObj.iconHeightSmall * 0.5);
}
if (obj.label.length > 0) {
draggableObj.labelEl = $(
'<div ' +
'style=" ' +
'position: absolute; ' +
'color: black; ' +
'font-size: 0.95em; ' +
'" ' +
'>' +
obj.label +
'</div>'
);
draggableObj.labelEl.css('left', 50 - draggableObj.labelWidth * 0.5);
draggableObj.labelEl.css('top', 5 + draggableObj.iconHeightSmall + 5);
draggableObj.labelEl.mousedown(function (event) {
draggableObj.mouseDown.call(draggableObj, event);
});
draggableObj.labelEl.mouseup(function (event) {
draggableObj.mouseUp.call(draggableObj, event);
});
draggableObj.labelEl.mousemove(function (event) {
draggableObj.mouseMove.call(draggableObj, event);
});
}
});
} else {
if (obj.label.length > 0) {
draggableObj.iconEl = $(
'<div ' +
'style=" ' +
'position: absolute; ' +
'color: black; ' +
'font-size: 0.95em; ' +
'" ' +
'>' +
obj.label +
'</div>'
);
draggableObj.iconEl.css('left', 50 - draggableObj.iconWidthSmall * 0.5);
draggableObj.iconEl.css('top', 50 - draggableObj.iconHeightSmall * 0.5);
}
}
// Attach events to "iconEl".
draggableObj.iconEl.mousedown(function (event) {
draggableObj.mouseDown.call(draggableObj, event);
});
draggableObj.iconEl.mouseup(function (event) {
draggableObj.mouseUp.call(draggableObj, event);
});
draggableObj.iconEl.mousemove(function (event) {
draggableObj.mouseMove.call(draggableObj, event);
});
// Attach events to "containerEl".
draggableObj.containerEl.mousedown(function (event) {
draggableObj.mouseDown.call(draggableObj, event);
});
draggableObj.containerEl.mouseup(function (event) {
draggableObj.mouseUp.call(draggableObj, event);
});
draggableObj.containerEl.mousemove(function (event) {
draggableObj.mouseMove.call(draggableObj, event);
});
draggableObj.stateDraggablesIndex = draggableObj.state.draggables.push(draggableObj);
logme('Returning from draggableCopy.');
return draggableObj;
}
function moveDraggableToXY(newPosition) {
var self, offset;
var self, offset, draggableCopy;
if (this.hasLoaded === false) {
self = this;
@@ -72,15 +220,25 @@ define(['logme', 'update_input'], function (logme, updateInput) {
return;
}
logme('moveDraggableToXY: isReusable = ' + this.isReusable);
if ((this.isReusable === true) && (this.isOriginal === true)) {
draggableCopy = this.makeDraggableCopy();
draggableCopy.moveDraggableToXY(newPosition);
return;
}
offset = 0;
if (this.state.config.targetOutline === true) {
offset = 1;
}
this.inContainer = false;
this.containerEl.hide();
this.iconEl.detach();
if (this.isOriginal === true) {
this.containerEl.hide();
this.iconEl.detach();
}
this.iconEl.css('background-color', this.iconElBGColor);
this.iconEl.css('padding-left', this.iconElPadding);
this.iconEl.css('padding-right', this.iconElPadding);
@@ -98,7 +256,9 @@ define(['logme', 'update_input'], function (logme, updateInput) {
this.iconEl.appendTo(this.state.baseImageEl.parent());
if (this.labelEl !== null) {
this.labelEl.detach();
if (this.isOriginal === true) {
this.labelEl.detach();
}
this.labelEl.css('background-color', this.state.config.labelBgColor);
this.labelEl.css('padding-left', 8);
this.labelEl.css('padding-right', 8);
@@ -120,12 +280,14 @@ define(['logme', 'update_input'], function (logme, updateInput) {
this.zIndex = 1000;
this.correctZIndexes();
this.state.numDraggablesInSlider -= 1;
this.state.updateArrowOpacity();
if (this.isOriginal === true) {
this.state.numDraggablesInSlider -= 1;
this.state.updateArrowOpacity();
}
}
function moveDraggableToTarget(target) {
var self, offset;
var self, offset, draggableCopy;
if (this.hasLoaded === false) {
self = this;
@@ -137,15 +299,25 @@ define(['logme', 'update_input'], function (logme, updateInput) {
return;
}
logme('moveDraggableToTarget: isReusable = ' + this.isReusable);
if ((this.isReusable === true) && (this.isOriginal === true)) {
draggableCopy = this.makeDraggableCopy();
draggableCopy.moveDraggableToTarget(target);
return;
}
offset = 0;
if (this.state.config.targetOutline === true) {
offset = 1;
}
this.inContainer = false;
this.containerEl.hide();
this.iconEl.detach();
if (this.isOriginal === true) {
this.containerEl.hide();
this.iconEl.detach();
}
this.iconEl.css('background-color', this.iconElBGColor);
this.iconEl.css('padding-left', this.iconElPadding);
this.iconEl.css('padding-right', this.iconElPadding);
@@ -163,7 +335,9 @@ define(['logme', 'update_input'], function (logme, updateInput) {
this.iconEl.appendTo(this.state.baseImageEl.parent());
if (this.labelEl !== null) {
this.labelEl.detach();
if (this.isOriginal === true) {
this.labelEl.detach();
}
this.labelEl.css('background-color', this.state.config.labelBgColor);
this.labelEl.css('padding-left', 8);
this.labelEl.css('padding-right', 8);
@@ -184,14 +358,20 @@ define(['logme', 'update_input'], function (logme, updateInput) {
this.zIndex = 1000;
this.correctZIndexes();
this.state.numDraggablesInSlider -= 1;
this.state.updateArrowOpacity();
if (this.isOriginal === true) {
this.state.numDraggablesInSlider -= 1;
this.state.updateArrowOpacity();
}
}
function processDraggable(state, obj) {
var draggableObj;
draggableObj = {
'originalConfigObj': obj,
'stateDraggablesIndex': null,
'id': obj.id,
'isReusable': obj.can_reuse,
@@ -235,7 +415,9 @@ define(['logme', 'update_input'], function (logme, updateInput) {
'moveBackToSlider': moveBackToSlider,
'moveDraggableToTarget': moveDraggableToTarget,
'moveDraggableToXY': moveDraggableToXY
'moveDraggableToXY': moveDraggableToXY,
'makeDraggableCopy': makeDraggableCopy
};
draggableObj.containerEl = $(
@@ -383,98 +565,71 @@ define(['logme', 'update_input'], function (logme, updateInput) {
});
state.numDraggablesInSlider += 1;
state.draggables.push(draggableObj);
draggableObj.stateDraggablesIndex = state.draggables.push(draggableObj) - 1;
}
function mouseDown(event) {
var draggableCopy;
if (this.mousePressed === false) {
// So that the browser does not perform a default drag.
// If we don't do this, each drag operation will
// potentially cause the highlghting of the dragged element.
event.preventDefault();
if ((this.isReusable === true) && (this.isOriginal === true)) {
return;
}
// If this draggable is just being dragged out of the
// container, we must perform some additional tasks.
if (this.inContainer === true) {
this.containerEl.hide();
if ((this.isReusable === true) && (this.isOriginal === true)) {
draggableCopy = this.makeDraggableCopy();
draggableCopy.mouseDown(event);
this.iconEl.detach();
this.iconEl.css(
'background-color', this.iconElBGColor
);
this.iconEl.css(
'padding-left', this.iconElPadding
);
this.iconEl.css(
'padding-right', this.iconElPadding
);
this.iconEl.css(
'border', this.iconElBorder
);
this.iconEl.css(
'width',
this.iconWidth
);
this.iconEl.css(
'height',
this.iconHeight
);
return;
}
if (this.isOriginal === true) {
this.containerEl.hide();
this.iconEl.detach();
}
this.iconEl.css('background-color', this.iconElBGColor);
this.iconEl.css('padding-left', this.iconElPadding);
this.iconEl.css('padding-right', this.iconElPadding);
this.iconEl.css('border', this.iconElBorder);
this.iconEl.css('width', this.iconWidth);
this.iconEl.css('height', this.iconHeight);
this.iconEl.css(
'left',
event.pageX -
this.state.baseImageEl.offset().left -
this.iconWidth * 0.5
- this.iconElLeftOffset
event.pageX - this.state.baseImageEl.offset().left - this.iconWidth * 0.5 - this.iconElLeftOffset
);
this.iconEl.css(
'top',
event.pageY -
this.state.baseImageEl.offset().top -
this.iconHeight * 0.5
);
this.iconEl.appendTo(
this.state.baseImageEl.parent()
event.pageY - this.state.baseImageEl.offset().top - this.iconHeight * 0.5
);
this.iconEl.appendTo(this.state.baseImageEl.parent());
if (this.labelEl !== null) {
this.labelEl.detach();
this.labelEl.css(
'background-color', this.state.config.labelBgColor
);
this.labelEl.css(
'padding-left', 8
);
this.labelEl.css(
'padding-right', 8
);
this.labelEl.css(
'border', '1px solid black'
);
if (this.isOriginal === true) {
this.labelEl.detach();
}
this.labelEl.css('background-color', this.state.config.labelBgColor);
this.labelEl.css('padding-left', 8);
this.labelEl.css('padding-right', 8);
this.labelEl.css('border', '1px solid black');
this.labelEl.css(
'left',
event.pageX -
this.state.baseImageEl.offset().left -
this.labelWidth * 0.5
- 9 // Account for padding, border.
event.pageX - this.state.baseImageEl.offset().left - this.labelWidth * 0.5 - 9 // Account for padding, border.
);
this.labelEl.css(
'top',
event.pageY -
this.state.baseImageEl.offset().top +
this.iconHeight * 0.5 + 5
);
this.labelEl.appendTo(
this.state.baseImageEl.parent()
event.pageY - this.state.baseImageEl.offset().top + this.iconHeight * 0.5 + 5
);
this.labelEl.appendTo(this.state.baseImageEl.parent());
}
this.inContainer = false;
this.state.numDraggablesInSlider -= 1;
if (this.isOriginal === true) {
this.state.numDraggablesInSlider -= 1;
}
}
this.zIndex = 1000;
@@ -549,7 +704,9 @@ define(['logme', 'update_input'], function (logme, updateInput) {
this.moveBackToSlider();
this.state.numDraggablesInSlider += 1;
if (this.isOriginal === true) {
this.state.numDraggablesInSlider += 1;
}
}
} else {
if (
@@ -563,7 +720,9 @@ define(['logme', 'update_input'], function (logme, updateInput) {
this.x = -1;
this.y = -1;
this.state.numDraggablesInSlider += 1;
if (this.isOriginal === true) {
this.state.numDraggablesInSlider += 1;
}
} else {
this.correctZIndexes();
@@ -572,11 +731,12 @@ define(['logme', 'update_input'], function (logme, updateInput) {
}
}
this.state.updateArrowOpacity();
if (this.isOriginal === true) {
this.state.updateArrowOpacity();
}
updateInput.update(this.state);
}
//
// Determine if a draggable, after it was relased, ends up on a
// target. We do this by iterating over all of the targets, and
// for each one we check whether the draggable's center is
@@ -585,7 +745,6 @@ define(['logme', 'update_input'], function (logme, updateInput) {
// positionIE is the object as returned by
//
// this.iconEl.position()
//
function checkIfOnTarget(positionIE) {
var c1, target;
@@ -732,9 +891,17 @@ define(['logme', 'update_input'], function (logme, updateInput) {
// move it back to the slider, placing it in the same position
// that it was dragged out of.
function moveBackToSlider() {
if (this.isOriginal === false) {
this.iconEl.empty();
if (this.labelEl !== null) {
this.labelEl.empty();
}
this.state.draggables.splice(this.stateDraggablesIndex, 1);
}
this.containerEl.show();
this.zIndex = this.oldZIndex;
this.zIndex = 1;
this.iconEl.detach();
this.iconEl.css('border', 'none');

4
common/static/js/capa/drag_and_drop/main.js
View File

@@ -69,10 +69,6 @@ define(
updateInput.update(state);
}
}());
setTimeout(function () {
logme('After 1000 ms:', state);
}, 1000);
}
});

11
common/static/js/capa/drag_and_drop/update_input.js
View File

@@ -198,9 +198,16 @@ define(['logme'], function (logme) {
function getById(state, type, id) {
return (function (c1) {
while (c1 < state[type].length) {
if (state[type][c1].id === id) {
return state[type][c1];
if (type === 'draggables') {
if ((state[type][c1].id === id) && (state[type][c1].isOriginal === true)) {
return state[type][c1];
}
} else { // 'targets'
if (state[type][c1].id === id) {
return state[type][c1];
}
}
c1 += 1;
}