+++ /dev/null
-/*
- * imgAreaSelect jQuery plugin
- * version 0.9.9
- *
- * Copyright (c) 2008-2011 Michal Wojciechowski (odyniec.net)
- *
- * Dual licensed under the MIT (MIT-LICENSE.txt)
- * and GPL (GPL-LICENSE.txt) licenses.
- *
- * http://odyniec.net/projects/imgareaselect/
- *
- */
-
-(function($) {
-
-/*
- * Math functions will be used extensively, so it's convenient to make a few
- * shortcuts
- */
-var abs = Math.abs,
- max = Math.max,
- min = Math.min,
- round = Math.round;
-
-/**
- * Create a new HTML div element
- *
- * @return A jQuery object representing the new element
- */
-function div() {
- return $('<div/>');
-}
-
-/**
- * imgAreaSelect initialization
- *
- * @param img
- * A HTML image element to attach the plugin to
- * @param options
- * An options object
- */
-$.imgAreaSelect = function (img, options) {
- var
- /* jQuery object representing the image */
- $img = $(img),
-
- /* Has the image finished loading? */
- imgLoaded,
-
- /* Plugin elements */
-
- /* Container box */
- $box = div(),
- /* Selection area */
- $area = div(),
- /* Border (four divs) */
- $border = div().add(div()).add(div()).add(div()),
- /* Outer area (four divs) */
- $outer = div().add(div()).add(div()).add(div()),
- /* Handles (empty by default, initialized in setOptions()) */
- $handles = $([]),
-
- /*
- * Additional element to work around a cursor problem in Opera
- * (explained later)
- */
- $areaOpera,
-
- /* Image position (relative to viewport) */
- left, top,
-
- /* Image offset (as returned by .offset()) */
- imgOfs = { left: 0, top: 0 },
-
- /* Image dimensions (as returned by .width() and .height()) */
- imgWidth, imgHeight,
-
- /*
- * jQuery object representing the parent element that the plugin
- * elements are appended to
- */
- $parent,
-
- /* Parent element offset (as returned by .offset()) */
- parOfs = { left: 0, top: 0 },
-
- /* Base z-index for plugin elements */
- zIndex = 0,
-
- /* Plugin elements position */
- position = 'absolute',
-
- /* X/Y coordinates of the starting point for move/resize operations */
- startX, startY,
-
- /* Horizontal and vertical scaling factors */
- scaleX, scaleY,
-
- /* Current resize mode ("nw", "se", etc.) */
- resize,
-
- /* Selection area constraints */
- minWidth, minHeight, maxWidth, maxHeight,
-
- /* Aspect ratio to maintain (floating point number) */
- aspectRatio,
-
- /* Are the plugin elements currently displayed? */
- shown,
-
- /* Current selection (relative to parent element) */
- x1, y1, x2, y2,
-
- /* Current selection (relative to scaled image) */
- selection = { x1: 0, y1: 0, x2: 0, y2: 0, width: 0, height: 0 },
-
- /* Document element */
- docElem = document.documentElement,
-
- /* Various helper variables used throughout the code */
- $p, d, i, o, w, h, adjusted;
-
- /*
- * Translate selection coordinates (relative to scaled image) to viewport
- * coordinates (relative to parent element)
- */
-
- /**
- * Translate selection X to viewport X
- *
- * @param x
- * Selection X
- * @return Viewport X
- */
- function viewX(x) {
- return x + imgOfs.left - parOfs.left;
- }
-
- /**
- * Translate selection Y to viewport Y
- *
- * @param y
- * Selection Y
- * @return Viewport Y
- */
- function viewY(y) {
- return y + imgOfs.top - parOfs.top;
- }
-
- /*
- * Translate viewport coordinates to selection coordinates
- */
-
- /**
- * Translate viewport X to selection X
- *
- * @param x
- * Viewport X
- * @return Selection X
- */
- function selX(x) {
- return x - imgOfs.left + parOfs.left;
- }
-
- /**
- * Translate viewport Y to selection Y
- *
- * @param y
- * Viewport Y
- * @return Selection Y
- */
- function selY(y) {
- return y - imgOfs.top + parOfs.top;
- }
-
- /*
- * Translate event coordinates (relative to document) to viewport
- * coordinates
- */
-
- /**
- * Get event X and translate it to viewport X
- *
- * @param event
- * The event object
- * @return Viewport X
- */
- function evX(event) {
- return event.pageX - parOfs.left;
- }
-
- /**
- * Get event Y and translate it to viewport Y
- *
- * @param event
- * The event object
- * @return Viewport Y
- */
- function evY(event) {
- return event.pageY - parOfs.top;
- }
-
- /**
- * Get the current selection
- *
- * @param noScale
- * If set to <code>true</code>, scaling is not applied to the
- * returned selection
- * @return Selection object
- */
- function getSelection(noScale) {
- var sx = noScale || scaleX, sy = noScale || scaleY;
-
- return { x1: round(selection.x1 * sx),
- y1: round(selection.y1 * sy),
- x2: round(selection.x2 * sx),
- y2: round(selection.y2 * sy),
- width: round(selection.x2 * sx) - round(selection.x1 * sx),
- height: round(selection.y2 * sy) - round(selection.y1 * sy) };
- }
-
- /**
- * Set the current selection
- *
- * @param x1
- * X coordinate of the upper left corner of the selection area
- * @param y1
- * Y coordinate of the upper left corner of the selection area
- * @param x2
- * X coordinate of the lower right corner of the selection area
- * @param y2
- * Y coordinate of the lower right corner of the selection area
- * @param noScale
- * If set to <code>true</code>, scaling is not applied to the
- * new selection
- */
- function setSelection(x1, y1, x2, y2, noScale) {
- var sx = noScale || scaleX, sy = noScale || scaleY;
-
- selection = {
- x1: round(x1 / sx || 0),
- y1: round(y1 / sy || 0),
- x2: round(x2 / sx || 0),
- y2: round(y2 / sy || 0)
- };
-
- selection.width = selection.x2 - selection.x1;
- selection.height = selection.y2 - selection.y1;
- }
-
- /**
- * Recalculate image and parent offsets
- */
- function adjust() {
- /*
- * Do not adjust if image width is not a positive number. This might
- * happen when imgAreaSelect is put on a parent element which is then
- * hidden.
- */
- if (!$img.width())
- return;
-
- /*
- * Get image offset. The .offset() method returns float values, so they
- * need to be rounded.
- */
- imgOfs = { left: round($img.offset().left), top: round($img.offset().top) };
-
- /* Get image dimensions */
- imgWidth = $img.innerWidth();
- imgHeight = $img.innerHeight();
-
- imgOfs.top += ($img.outerHeight() - imgHeight) >> 1;
- imgOfs.left += ($img.outerWidth() - imgWidth) >> 1;
-
- /* Set minimum and maximum selection area dimensions */
- minWidth = round(options.minWidth / scaleX) || 0;
- minHeight = round(options.minHeight / scaleY) || 0;
- maxWidth = round(min(options.maxWidth / scaleX || 1<<24, imgWidth));
- maxHeight = round(min(options.maxHeight / scaleY || 1<<24, imgHeight));
-
- /*
- * Workaround for jQuery 1.3.2 incorrect offset calculation, originally
- * observed in Safari 3. Firefox 2 is also affected.
- */
- if ($().jquery == '1.3.2' && position == 'fixed' &&
- !docElem['getBoundingClientRect'])
- {
- imgOfs.top += max(document.body.scrollTop, docElem.scrollTop);
- imgOfs.left += max(document.body.scrollLeft, docElem.scrollLeft);
- }
-
- /* Determine parent element offset */
- parOfs = /absolute|relative/.test($parent.css('position')) ?
- { left: round($parent.offset().left) - $parent.scrollLeft(),
- top: round($parent.offset().top) - $parent.scrollTop() } :
- position == 'fixed' ?
- { left: $(document).scrollLeft(), top: $(document).scrollTop() } :
- { left: 0, top: 0 };
-
- left = viewX(0);
- top = viewY(0);
-
- /*
- * Check if selection area is within image boundaries, adjust if
- * necessary
- */
- if (selection.x2 > imgWidth || selection.y2 > imgHeight)
- doResize();
- }
-
- /**
- * Update plugin elements
- *
- * @param resetKeyPress
- * If set to <code>false</code>, this instance's keypress
- * event handler is not activated
- */
- function update(resetKeyPress) {
- /* If plugin elements are hidden, do nothing */
- if (!shown) return;
-
- /*
- * Set the position and size of the container box and the selection area
- * inside it
- */
- $box.css({ left: viewX(selection.x1), top: viewY(selection.y1) })
- .add($area).width(w = selection.width).height(h = selection.height);
-
- /*
- * Reset the position of selection area, borders, and handles (IE6/IE7
- * position them incorrectly if we don't do this)
- */
- $area.add($border).add($handles).css({ left: 0, top: 0 });
-
- /* Set border dimensions */
- $border
- .width(max(w - $border.outerWidth() + $border.innerWidth(), 0))
- .height(max(h - $border.outerHeight() + $border.innerHeight(), 0));
-
- /* Arrange the outer area elements */
- $($outer[0]).css({ left: left, top: top,
- width: selection.x1, height: imgHeight });
- $($outer[1]).css({ left: left + selection.x1, top: top,
- width: w, height: selection.y1 });
- $($outer[2]).css({ left: left + selection.x2, top: top,
- width: imgWidth - selection.x2, height: imgHeight });
- $($outer[3]).css({ left: left + selection.x1, top: top + selection.y2,
- width: w, height: imgHeight - selection.y2 });
-
- w -= $handles.outerWidth();
- h -= $handles.outerHeight();
-
- /* Arrange handles */
- switch ($handles.length) {
- case 8:
- $($handles[4]).css({ left: w >> 1 });
- $($handles[5]).css({ left: w, top: h >> 1 });
- $($handles[6]).css({ left: w >> 1, top: h });
- $($handles[7]).css({ top: h >> 1 });
- case 4:
- $handles.slice(1,3).css({ left: w });
- $handles.slice(2,4).css({ top: h });
- }
-
- if (resetKeyPress !== false) {
- /*
- * Need to reset the document keypress event handler -- unbind the
- * current handler
- */
- if ($.imgAreaSelect.keyPress != docKeyPress)
- $(document).unbind($.imgAreaSelect.keyPress,
- $.imgAreaSelect.onKeyPress);
-
- if (options.keys)
- /*
- * Set the document keypress event handler to this instance's
- * docKeyPress() function
- */
- $(document)[$.imgAreaSelect.keyPress](
- $.imgAreaSelect.onKeyPress = docKeyPress);
- }
-
- /*
- * Internet Explorer displays 1px-wide dashed borders incorrectly by
- * filling the spaces between dashes with white. Toggling the margin
- * property between 0 and "auto" fixes this in IE6 and IE7 (IE8 is still
- * broken). This workaround is not perfect, as it requires setTimeout()
- * and thus causes the border to flicker a bit, but I haven't found a
- * better solution.
- *
- * Note: This only happens with CSS borders, set with the borderWidth,
- * borderOpacity, borderColor1, and borderColor2 options (which are now
- * deprecated). Borders created with GIF background images are fine.
- */
- if ($.browser.msie && $border.outerWidth() - $border.innerWidth() == 2) {
- $border.css('margin', 0);
- setTimeout(function () { $border.css('margin', 'auto'); }, 0);
- }
- }
-
- /**
- * Do the complete update sequence: recalculate offsets, update the
- * elements, and set the correct values of x1, y1, x2, and y2.
- *
- * @param resetKeyPress
- * If set to <code>false</code>, this instance's keypress
- * event handler is not activated
- */
- function doUpdate(resetKeyPress) {
- adjust();
- update(resetKeyPress);
- x1 = viewX(selection.x1); y1 = viewY(selection.y1);
- x2 = viewX(selection.x2); y2 = viewY(selection.y2);
- }
-
- /**
- * Hide or fade out an element (or multiple elements)
- *
- * @param $elem
- * A jQuery object containing the element(s) to hide/fade out
- * @param fn
- * Callback function to be called when fadeOut() completes
- */
- function hide($elem, fn) {
- options.fadeSpeed ? $elem.fadeOut(options.fadeSpeed, fn) : $elem.hide();
- }
-
- /**
- * Selection area mousemove event handler
- *
- * @param event
- * The event object
- */
- function areaMouseMove(event) {
- var x = selX(evX(event)) - selection.x1,
- y = selY(evY(event)) - selection.y1;
-
- if (!adjusted) {
- adjust();
- adjusted = true;
-
- $box.one('mouseout', function () { adjusted = false; });
- }
-
- /* Clear the resize mode */
- resize = '';
-
- if (options.resizable) {
- /*
- * Check if the mouse pointer is over the resize margin area and set
- * the resize mode accordingly
- */
- if (y <= options.resizeMargin)
- resize = 'n';
- else if (y >= selection.height - options.resizeMargin)
- resize = 's';
- if (x <= options.resizeMargin)
- resize += 'w';
- else if (x >= selection.width - options.resizeMargin)
- resize += 'e';
- }
-
- $box.css('cursor', resize ? resize + '-resize' :
- options.movable ? 'move' : '');
- if ($areaOpera)
- $areaOpera.toggle();
- }
-
- /**
- * Document mouseup event handler
- *
- * @param event
- * The event object
- */
- function docMouseUp(event) {
- /* Set back the default cursor */
- $('body').css('cursor', '');
- /*
- * If autoHide is enabled, or if the selection has zero width/height,
- * hide the selection and the outer area
- */
- if (options.autoHide || selection.width * selection.height == 0)
- hide($box.add($outer), function () { $(this).hide(); });
-
- $(document).unbind('mousemove', selectingMouseMove);
- $box.mousemove(areaMouseMove);
-
- options.onSelectEnd(img, getSelection());
- }
-
- /**
- * Selection area mousedown event handler
- *
- * @param event
- * The event object
- * @return false
- */
- function areaMouseDown(event) {
- if (event.which != 1) return false;
-
- adjust();
-
- if (resize) {
- /* Resize mode is in effect */
- $('body').css('cursor', resize + '-resize');
-
- x1 = viewX(selection[/w/.test(resize) ? 'x2' : 'x1']);
- y1 = viewY(selection[/n/.test(resize) ? 'y2' : 'y1']);
-
- $(document).mousemove(selectingMouseMove)
- .one('mouseup', docMouseUp);
- $box.unbind('mousemove', areaMouseMove);
- }
- else if (options.movable) {
- startX = left + selection.x1 - evX(event);
- startY = top + selection.y1 - evY(event);
-
- $box.unbind('mousemove', areaMouseMove);
-
- $(document).mousemove(movingMouseMove)
- .one('mouseup', function () {
- options.onSelectEnd(img, getSelection());
-
- $(document).unbind('mousemove', movingMouseMove);
- $box.mousemove(areaMouseMove);
- });
- }
- else
- $img.mousedown(event);
-
- return false;
- }
-
- /**
- * Adjust the x2/y2 coordinates to maintain aspect ratio (if defined)
- *
- * @param xFirst
- * If set to <code>true</code>, calculate x2 first. Otherwise,
- * calculate y2 first.
- */
- function fixAspectRatio(xFirst) {
- if (aspectRatio)
- if (xFirst) {
- x2 = max(left, min(left + imgWidth,
- x1 + abs(y2 - y1) * aspectRatio * (x2 > x1 || -1)));
- y2 = round(max(top, min(top + imgHeight,
- y1 + abs(x2 - x1) / aspectRatio * (y2 > y1 || -1))));
- x2 = round(x2);
- }
- else {
- y2 = max(top, min(top + imgHeight,
- y1 + abs(x2 - x1) / aspectRatio * (y2 > y1 || -1)));
- x2 = round(max(left, min(left + imgWidth,
- x1 + abs(y2 - y1) * aspectRatio * (x2 > x1 || -1))));
- y2 = round(y2);
- }
- }
-
- /**
- * Resize the selection area respecting the minimum/maximum dimensions and
- * aspect ratio
- */
- function doResize() {
- /*
- * Make sure the top left corner of the selection area stays within
- * image boundaries (it might not if the image source was dynamically
- * changed).
- */
- x1 = min(x1, left + imgWidth);
- y1 = min(y1, top + imgHeight);
-
- if (abs(x2 - x1) < minWidth) {
- /* Selection width is smaller than minWidth */
- x2 = x1 - minWidth * (x2 < x1 || -1);
-
- if (x2 < left)
- x1 = left + minWidth;
- else if (x2 > left + imgWidth)
- x1 = left + imgWidth - minWidth;
- }
-
- if (abs(y2 - y1) < minHeight) {
- /* Selection height is smaller than minHeight */
- y2 = y1 - minHeight * (y2 < y1 || -1);
-
- if (y2 < top)
- y1 = top + minHeight;
- else if (y2 > top + imgHeight)
- y1 = top + imgHeight - minHeight;
- }
-
- x2 = max(left, min(x2, left + imgWidth));
- y2 = max(top, min(y2, top + imgHeight));
-
- fixAspectRatio(abs(x2 - x1) < abs(y2 - y1) * aspectRatio);
-
- if (abs(x2 - x1) > maxWidth) {
- /* Selection width is greater than maxWidth */
- x2 = x1 - maxWidth * (x2 < x1 || -1);
- fixAspectRatio();
- }
-
- if (abs(y2 - y1) > maxHeight) {
- /* Selection height is greater than maxHeight */
- y2 = y1 - maxHeight * (y2 < y1 || -1);
- fixAspectRatio(true);
- }
-
- selection = { x1: selX(min(x1, x2)), x2: selX(max(x1, x2)),
- y1: selY(min(y1, y2)), y2: selY(max(y1, y2)),
- width: abs(x2 - x1), height: abs(y2 - y1) };
-
- update();
-
- options.onSelectChange(img, getSelection());
- }
-
- /**
- * Mousemove event handler triggered when the user is selecting an area
- *
- * @param event
- * The event object
- * @return false
- */
- function selectingMouseMove(event) {
- x2 = /w|e|^$/.test(resize) || aspectRatio ? evX(event) : viewX(selection.x2);
- y2 = /n|s|^$/.test(resize) || aspectRatio ? evY(event) : viewY(selection.y2);
-
- doResize();
-
- return false;
- }
-
- /**
- * Move the selection area
- *
- * @param newX1
- * New viewport X1
- * @param newY1
- * New viewport Y1
- */
- function doMove(newX1, newY1) {
- x2 = (x1 = newX1) + selection.width;
- y2 = (y1 = newY1) + selection.height;
-
- $.extend(selection, { x1: selX(x1), y1: selY(y1), x2: selX(x2),
- y2: selY(y2) });
-
- update();
-
- options.onSelectChange(img, getSelection());
- }
-
- /**
- * Mousemove event handler triggered when the selection area is being moved
- *
- * @param event
- * The event object
- * @return false
- */
- function movingMouseMove(event) {
- x1 = max(left, min(startX + evX(event), left + imgWidth - selection.width));
- y1 = max(top, min(startY + evY(event), top + imgHeight - selection.height));
-
- doMove(x1, y1);
-
- event.preventDefault();
- return false;
- }
-
- /**
- * Start selection
- */
- function startSelection() {
- $(document).unbind('mousemove', startSelection);
- adjust();
-
- x2 = x1;
- y2 = y1;
- doResize();
-
- resize = '';
-
- if (!$outer.is(':visible'))
- /* Show the plugin elements */
- $box.add($outer).hide().fadeIn(options.fadeSpeed||0);
-
- shown = true;
-
- $(document).unbind('mouseup', cancelSelection)
- .mousemove(selectingMouseMove).one('mouseup', docMouseUp);
- $box.unbind('mousemove', areaMouseMove);
-
- options.onSelectStart(img, getSelection());
- }
-
- /**
- * Cancel selection
- */
- function cancelSelection() {
- $(document).unbind('mousemove', startSelection)
- .unbind('mouseup', cancelSelection);
- hide($box.add($outer));
-
- setSelection(selX(x1), selY(y1), selX(x1), selY(y1));
-
- /* If this is an API call, callback functions should not be triggered */
- if (!(this instanceof $.imgAreaSelect)) {
- options.onSelectChange(img, getSelection());
- options.onSelectEnd(img, getSelection());
- }
- }
-
- /**
- * Image mousedown event handler
- *
- * @param event
- * The event object
- * @return false
- */
- function imgMouseDown(event) {
- /* Ignore the event if animation is in progress */
- if (event.which != 1 || $outer.is(':animated')) return false;
-
- adjust();
- startX = x1 = evX(event);
- startY = y1 = evY(event);
-
- /* Selection will start when the mouse is moved */
- $(document).mousemove(startSelection).mouseup(cancelSelection);
-
- return false;
- }
-
- /**
- * Window resize event handler
- */
- function windowResize() {
- doUpdate(false);
- }
-
- /**
- * Image load event handler. This is the final part of the initialization
- * process.
- */
- function imgLoad() {
- imgLoaded = true;
-
- /* Set options */
- setOptions(options = $.extend({
- classPrefix: 'imgareaselect',
- movable: true,
- parent: 'body',
- resizable: true,
- resizeMargin: 10,
- onInit: function () {},
- onSelectStart: function () {},
- onSelectChange: function () {},
- onSelectEnd: function () {}
- }, options));
-
- $box.add($outer).css({ visibility: '' });
-
- if (options.show) {
- shown = true;
- adjust();
- update();
- $box.add($outer).hide().fadeIn(options.fadeSpeed||0);
- }
-
- /*
- * Call the onInit callback. The setTimeout() call is used to ensure
- * that the plugin has been fully initialized and the object instance is
- * available (so that it can be obtained in the callback).
- */
- setTimeout(function () { options.onInit(img, getSelection()); }, 0);
- }
-
- /**
- * Document keypress event handler
- *
- * @param event
- * The event object
- * @return false
- */
- var docKeyPress = function(event) {
- var k = options.keys, d, t, key = event.keyCode;
-
- d = !isNaN(k.alt) && (event.altKey || event.originalEvent.altKey) ? k.alt :
- !isNaN(k.ctrl) && event.ctrlKey ? k.ctrl :
- !isNaN(k.shift) && event.shiftKey ? k.shift :
- !isNaN(k.arrows) ? k.arrows : 10;
-
- if (k.arrows == 'resize' || (k.shift == 'resize' && event.shiftKey) ||
- (k.ctrl == 'resize' && event.ctrlKey) ||
- (k.alt == 'resize' && (event.altKey || event.originalEvent.altKey)))
- {
- /* Resize selection */
-
- switch (key) {
- case 37:
- /* Left */
- d = -d;
- case 39:
- /* Right */
- t = max(x1, x2);
- x1 = min(x1, x2);
- x2 = max(t + d, x1);
- fixAspectRatio();
- break;
- case 38:
- /* Up */
- d = -d;
- case 40:
- /* Down */
- t = max(y1, y2);
- y1 = min(y1, y2);
- y2 = max(t + d, y1);
- fixAspectRatio(true);
- break;
- default:
- return;
- }
-
- doResize();
- }
- else {
- /* Move selection */
-
- x1 = min(x1, x2);
- y1 = min(y1, y2);
-
- switch (key) {
- case 37:
- /* Left */
- doMove(max(x1 - d, left), y1);
- break;
- case 38:
- /* Up */
- doMove(x1, max(y1 - d, top));
- break;
- case 39:
- /* Right */
- doMove(x1 + min(d, imgWidth - selX(x2)), y1);
- break;
- case 40:
- /* Down */
- doMove(x1, y1 + min(d, imgHeight - selY(y2)));
- break;
- default:
- return;
- }
- }
-
- return false;
- };
-
- /**
- * Apply style options to plugin element (or multiple elements)
- *
- * @param $elem
- * A jQuery object representing the element(s) to style
- * @param props
- * An object that maps option names to corresponding CSS
- * properties
- */
- function styleOptions($elem, props) {
- for (var option in props)
- if (options[option] !== undefined)
- $elem.css(props[option], options[option]);
- }
-
- /**
- * Set plugin options
- *
- * @param newOptions
- * The new options object
- */
- function setOptions(newOptions) {
- if (newOptions.parent)
- ($parent = $(newOptions.parent)).append($box.add($outer));
-
- /* Merge the new options with the existing ones */
- $.extend(options, newOptions);
-
- adjust();
-
- if (newOptions.handles != null) {
- /* Recreate selection area handles */
- $handles.remove();
- $handles = $([]);
-
- i = newOptions.handles ? newOptions.handles == 'corners' ? 4 : 8 : 0;
-
- while (i--)
- $handles = $handles.add(div());
-
- /* Add a class to handles and set the CSS properties */
- $handles.addClass(options.classPrefix + '-handle').css({
- position: 'absolute',
- /*
- * The font-size property needs to be set to zero, otherwise
- * Internet Explorer makes the handles too large
- */
- fontSize: 0,
- zIndex: zIndex + 1 || 1
- });
-
- /*
- * If handle width/height has not been set with CSS rules, set the
- * default 5px
- */
- if (!parseInt($handles.css('width')) >= 0)
- $handles.width(5).height(5);
-
- /*
- * If the borderWidth option is in use, add a solid border to
- * handles
- */
- if (o = options.borderWidth)
- $handles.css({ borderWidth: o, borderStyle: 'solid' });
-
- /* Apply other style options */
- styleOptions($handles, { borderColor1: 'border-color',
- borderColor2: 'background-color',
- borderOpacity: 'opacity' });
- }
-
- /* Calculate scale factors */
- scaleX = options.imageWidth / imgWidth || 1;
- scaleY = options.imageHeight / imgHeight || 1;
-
- /* Set selection */
- if (newOptions.x1 != null) {
- setSelection(newOptions.x1, newOptions.y1, newOptions.x2,
- newOptions.y2);
- newOptions.show = !newOptions.hide;
- }
-
- if (newOptions.keys)
- /* Enable keyboard support */
- options.keys = $.extend({ shift: 1, ctrl: 'resize' },
- newOptions.keys);
-
- /* Add classes to plugin elements */
- $outer.addClass(options.classPrefix + '-outer');
- $area.addClass(options.classPrefix + '-selection');
- for (i = 0; i++ < 4;)
- $($border[i-1]).addClass(options.classPrefix + '-border' + i);
-
- /* Apply style options */
- styleOptions($area, { selectionColor: 'background-color',
- selectionOpacity: 'opacity' });
- styleOptions($border, { borderOpacity: 'opacity',
- borderWidth: 'border-width' });
- styleOptions($outer, { outerColor: 'background-color',
- outerOpacity: 'opacity' });
- if (o = options.borderColor1)
- $($border[0]).css({ borderStyle: 'solid', borderColor: o });
- if (o = options.borderColor2)
- $($border[1]).css({ borderStyle: 'dashed', borderColor: o });
-
- /* Append all the selection area elements to the container box */
- $box.append($area.add($border).add($areaOpera).add($handles));
-
- if ($.browser.msie) {
- if (o = $outer.css('filter').match(/opacity=(\d+)/))
- $outer.css('opacity', o[1]/100);
- if (o = $border.css('filter').match(/opacity=(\d+)/))
- $border.css('opacity', o[1]/100);
- }
-
- if (newOptions.hide)
- hide($box.add($outer));
- else if (newOptions.show && imgLoaded) {
- shown = true;
- $box.add($outer).fadeIn(options.fadeSpeed||0);
- doUpdate();
- }
-
- /* Calculate the aspect ratio factor */
- aspectRatio = (d = (options.aspectRatio || '').split(/:/))[0] / d[1];
-
- $img.add($outer).unbind('mousedown', imgMouseDown);
-
- if (options.disable || options.enable === false) {
- /* Disable the plugin */
- $box.unbind('mousemove', areaMouseMove).unbind('mousedown', areaMouseDown);
- $(window).unbind('resize', windowResize);
- }
- else {
- if (options.enable || options.disable === false) {
- /* Enable the plugin */
- if (options.resizable || options.movable)
- $box.mousemove(areaMouseMove).mousedown(areaMouseDown);
-
- $(window).resize(windowResize);
- }
-
- if (!options.persistent)
- $img.add($outer).mousedown(imgMouseDown);
- }
-
- options.enable = options.disable = undefined;
- }
-
- /**
- * Remove plugin completely
- */
- this.remove = function () {
- /*
- * Call setOptions with { disable: true } to unbind the event handlers
- */
- setOptions({ disable: true });
- $box.add($outer).remove();
- };
-
- /*
- * Public API
- */
-
- /**
- * Get current options
- *
- * @return An object containing the set of options currently in use
- */
- this.getOptions = function () { return options; };
-
- /**
- * Set plugin options
- *
- * @param newOptions
- * The new options object
- */
- this.setOptions = setOptions;
-
- /**
- * Get the current selection
- *
- * @param noScale
- * If set to <code>true</code>, scaling is not applied to the
- * returned selection
- * @return Selection object
- */
- this.getSelection = getSelection;
-
- /**
- * Set the current selection
- *
- * @param x1
- * X coordinate of the upper left corner of the selection area
- * @param y1
- * Y coordinate of the upper left corner of the selection area
- * @param x2
- * X coordinate of the lower right corner of the selection area
- * @param y2
- * Y coordinate of the lower right corner of the selection area
- * @param noScale
- * If set to <code>true</code>, scaling is not applied to the
- * new selection
- */
- this.setSelection = setSelection;
-
- /**
- * Cancel selection
- */
- this.cancelSelection = cancelSelection;
-
- /**
- * Update plugin elements
- *
- * @param resetKeyPress
- * If set to <code>false</code>, this instance's keypress
- * event handler is not activated
- */
- this.update = doUpdate;
-
- /*
- * Traverse the image's parent elements (up to <body>) and find the
- * highest z-index
- */
- $p = $img;
-
- while ($p.length) {
- zIndex = max(zIndex,
- !isNaN($p.css('z-index')) ? $p.css('z-index') : zIndex);
- /* Also check if any of the ancestor elements has fixed position */
- if ($p.css('position') == 'fixed')
- position = 'fixed';
-
- $p = $p.parent(':not(body)');
- }
-
- /*
- * If z-index is given as an option, it overrides the one found by the
- * above loop
- */
- zIndex = options.zIndex || zIndex;
-
- if ($.browser.msie)
- $img.attr('unselectable', 'on');
-
- /*
- * In MSIE and WebKit, we need to use the keydown event instead of keypress
- */
- $.imgAreaSelect.keyPress = $.browser.msie ||
- $.browser.safari ? 'keydown' : 'keypress';
-
- /*
- * There is a bug affecting the CSS cursor property in Opera (observed in
- * versions up to 10.00) that prevents the cursor from being updated unless
- * the mouse leaves and enters the element again. To trigger the mouseover
- * event, we're adding an additional div to $box and we're going to toggle
- * it when mouse moves inside the selection area.
- */
- if ($.browser.opera)
- $areaOpera = div().css({ width: '100%', height: '100%',
- position: 'absolute', zIndex: zIndex + 2 || 2 });
-
- /*
- * We initially set visibility to "hidden" as a workaround for a weird
- * behaviour observed in Google Chrome 1.0.154.53 (on Windows XP). Normally
- * we would just set display to "none", but, for some reason, if we do so
- * then Chrome refuses to later display the element with .show() or
- * .fadeIn().
- */
- $box.add($outer).css({ visibility: 'hidden', position: position,
- overflow: 'hidden', zIndex: zIndex || '0' });
- $box.css({ zIndex: zIndex + 2 || 2 });
- $area.add($border).css({ position: 'absolute', fontSize: 0 });
-
- /*
- * If the image has been fully loaded, or if it is not really an image (eg.
- * a div), call imgLoad() immediately; otherwise, bind it to be called once
- * on image load event.
- */
- img.complete || img.readyState == 'complete' || !$img.is('img') ?
- imgLoad() : $img.one('load', imgLoad);
-
- /*
- * MSIE 9.0 doesn't always fire the image load event -- resetting the src
- * attribute seems to trigger it. The check is for version 7 and above to
- * accommodate for MSIE 9 running in compatibility mode.
- */
- if (!imgLoaded && $.browser.msie && $.browser.version >= 7)
- img.src = img.src;
-};
-
-/**
- * Invoke imgAreaSelect on a jQuery object containing the image(s)
- *
- * @param options
- * Options object
- * @return The jQuery object or a reference to imgAreaSelect instance (if the
- * <code>instance</code> option was specified)
- */
-$.fn.imgAreaSelect = function (options) {
- options = options || {};
-
- this.each(function () {
- /* Is there already an imgAreaSelect instance bound to this element? */
- if ($(this).data('imgAreaSelect')) {
- /* Yes there is -- is it supposed to be removed? */
- if (options.remove) {
- /* Remove the plugin */
- $(this).data('imgAreaSelect').remove();
- $(this).removeData('imgAreaSelect');
- }
- else
- /* Reset options */
- $(this).data('imgAreaSelect').setOptions(options);
- }
- else if (!options.remove) {
- /* No exising instance -- create a new one */
-
- /*
- * If neither the "enable" nor the "disable" option is present, add
- * "enable" as the default
- */
- if (options.enable === undefined && options.disable === undefined)
- options.enable = true;
-
- $(this).data('imgAreaSelect', new $.imgAreaSelect(this, options));
- }
- });
-
- if (options.instance)
- /*
- * Return the imgAreaSelect instance bound to the first element in the
- * set
- */
- return $(this).data('imgAreaSelect');
-
- return this;
-};
-
-})(jQuery);
scripts.mit.edu / autoinstalls / wordpress.git / blobdiff