直接投票？
我是否遗漏了$.fn.无效的任何内容。虽然我有其他模块，但这个功能就像魅力一样。
我在jQuery中遇到了一些奇怪的错误。我正在使用jquery.jrac.js文件裁剪图片，不幸的是我在访问函数时得到TypeError: $.fn.jracIMG is not a function $.fn.jracIMG("", param);
我已正确添加了jquery.js文件。
如果我从$.fn.中移除jracIMG，则在库文件本身中会出现其他一些奇怪的错误，例如$(elem).find("img").jrac({
以下是我正在使用的功能
(function( $ ){
$.fn.jrac = function(options) {
// Default settings
var settings = {
'crop_width': 200,
'crop_height': 100,
// The two following properties define the crop position (relative to the
// image).
'crop_x': 0,
'crop_y': 0,
'crop_resize': true,
'crop_aspect_ratio': null,
'image_width': null,
'image_height': null,
'zoom_min': 100,
'zoom_max': 3000,
'zoom_label': '',
'viewport_image_surrounding': false, // Set the viewport to surround the image on load
'viewport_width': null,
'viewport_height': null,
'viewport_resize': true,
// The two following properties allow to position the content (negative
// value allowed). It can be use to focus the viewport on the cropped
// part of the image.
'viewport_content_left': 0,
'viewport_content_top': 0,
// Submit here a callback function (context is the viewport).
'viewport_onload': null
};
// Apply the resize and crop tools to each images
return this.each(function() {
if (!$(this).is('img')) {
return;
}
// Read options
var destroy = false;
if ( typeof(options) == 'object' ) {
$.extend( settings, options );
}
else if (options == 'destroy') {
destroy = true;
}
var $image = $(this);
// Test if jrac was previously run
var jrac_loaded = false;
if ($image.parent().hasClass('jrac_viewport')) {
jrac_loaded = true;
}
if (jrac_loaded && destroy) {
// Unload jrac if asked
$image.draggable("destroy");
$image.parent().find('.jrac_crop').remove();
$image.parent().parent().find('.jrac_zoom_slider').remove();
$image.parent().append($image.data('original')); // restore original image
$image.parent().unwrap(); // remove container
$image.unwrap(); // remove viewport
$image.remove(); // remove image which was altered (in its css attributes)
}
else {
// Record image before some of its attributes get altered by some
// jrac css or some user size or proportion changes.
$image.data('original', $image.clone());
}
// Do nothing more if destroy is asked
if (destroy) {
return;
}
// Prepare image
if (!jrac_loaded) {
$image.hide().css('position','absolute').wrap('<div class="jrac_container"><div class="jrac_viewport"></div></div>');
}
// Get viewport and container references
var $viewport = $image.parent();
var $container = $viewport.parent();
// Add a waiting on load input image
var $loading = $('<div class="jrac_loading" />');
$viewport.append($loading);
// The following procedure hold business intend to be run once the image
// is loaded (load event).
var image_load_handler = function(){
// Add some custom properties to $image
$.extend($image, {
scale_proportion_locked: true,
originalWidth: $image.width(),
originalHeight: $image.height()
});
// Set given optional image size
$image.width(settings.image_width).height(settings.image_height);
// Apply the viewport image surrounding is asked
if (settings.viewport_image_surrounding) {
$viewport.width($image.width()).height($image.height());
}
else {
$viewport.width(settings.viewport_width).height(settings.viewport_height);
}
// Set the viewport content position for the image
$image.css({'left': settings.viewport_content_left, 'top': settings.viewport_content_top});
// Create the zoom widget which permit to resize the image
if (!jrac_loaded) {
if (settings.zoom_label) {
var $zoom_label = $('<div class="jrac_zoom_slider_label">'+settings.zoom_label+'</div>');
$container.append($zoom_label);
}
var $zoom_widget = $('<div class="jrac_zoom_slider"><div class="ui-slider-handle"></div></div>')
.slider({
value: $image.width(),
min: settings.zoom_min,
max: settings.zoom_max,
start: function(event, ui) {
$.extend($zoom_widget,{
on_start_width_value: ui.value,
on_start_height_value: $image.height()
})
},
slide: function(event, ui) {
var height = Math.round($zoom_widget.on_start_height_value * ui.value / $zoom_widget.on_start_width_value);
$image.height(height);
$image.width(ui.value);
$viewport.observator.notify('jrac_image_height', height);
$viewport.observator.notify('jrac_image_width', ui.value);
}
});
$container.append($zoom_widget);
// Make the viewport resizeable
if (settings.viewport_resize) {
$viewport.resizable();
}
// Enable the image draggable interaction
$image.draggable({
drag: function(event, ui) {
if (ui.position.left != ui.originalPosition.left) {
$viewport.observator.notify('jrac_crop_x', $viewport.observator.crop_position_x());
}
if (ui.position.top != ui.originalPosition.top) {
$viewport.observator.notify('jrac_crop_y', $viewport.observator.crop_position_y());
}
}
});
// Build the crop element
var $crop = $('<div class="jrac_crop"><div class="jrac_crop_drag_handler"></div></div>')
.css({
'width': settings.crop_width,
'height': settings.crop_height,
'left':settings.crop_x+settings.viewport_content_left,
'top':settings.crop_y+settings.viewport_content_top
}).draggable({
containment: $viewport,
handle: 'div.jrac_crop_drag_handler',
drag: function(event, ui) {
if (ui.position.left != ui.originalPosition.left) {
$viewport.observator.notify('jrac_crop_x', $viewport.observator.crop_position_x());
}
if (ui.position.top != ui.originalPosition.top) {
$viewport.observator.notify('jrac_crop_y', $viewport.observator.crop_position_y());
}
}
});
if (settings.crop_resize) {
$crop.resizable({
containment: $viewport,
aspectRatio: settings.crop_aspect_ratio,
resize: function(event, ui) {
if (ui.size.width != ui.originalSize.width) {
$viewport.observator.notify('jrac_crop_width', $crop.width());
}
if (ui.size.height != ui.originalSize.height) {
$viewport.observator.notify('jrac_crop_height', $crop.height());
}
}
})
}
$viewport.append($crop);
}
// Extend viewport witch usefull objects as it will be exposed to user
// functions interface
$.extend($viewport, {
$container: $container,
$image: $image,
$crop: $crop,
$zoom_widget: $zoom_widget,
// Let me introduce the following Terminator's friend which handle the
// creation of the viewport events.
observator: {
items: {},
// Register an event with a given element
register: function(event_name, element, onevent_callback) {
if (event_name && element) {
this.items[event_name] = {
element: element,
callback: onevent_callback
};
}
},
// Unregister an event
unregister: function(event_name) {
delete this.items[event_name];
},
// Trigger an event and optionally supply a value
notify: function(event_name, value) {
if (this.items[event_name]) {
var element = this.items[event_name].element;
var onevent_callback = this.items[event_name].callback;
element.trigger(event_name,[$viewport, value]);
if ($.isFunction(onevent_callback)) {
onevent_callback.call($viewport, event_name, element, value);
}
}
$image.trigger('jrac_events',[$viewport]);
},
notify_all: function() {
this.notify('jrac_crop_x', this.crop_position_x());
this.notify('jrac_crop_y', this.crop_position_y());
this.notify('jrac_crop_width', $crop.width());
this.notify('jrac_crop_height', $crop.height());
this.notify('jrac_image_width', $image.width());
this.notify('jrac_image_height', $image.height());
},
// Return crop x position relative to $image
crop_position_x: function() {
return $crop.position().left - $image.position().left;
},
// Return crop y position relative to $image
crop_position_y: function() {
return $crop.position().top - $image.position().top;
},
// Does the crop is completely inside the image?
crop_consistent: function() {
return this.crop_position_x()>=0 && this.crop_position_y()>=0
&& this.crop_position_x() + $crop.width() + parseInt($crop.css('border-width'),10)*2 <=$image.width()
&& this.crop_position_y() + $crop.height() + parseInt($crop.css('border-width'),10)*2 <=$image.height();
},
// Set a property (which his name is one of the event) with a given
// value then notify this operation
set_property: function(that, value) {
value = parseInt(value);
if (isNaN(value)) {
return;
}
switch (that) {
case 'jrac_crop_x':
$crop.css('left',value + $image.position().left);
break;
case 'jrac_crop_y':
$crop.css('top',value + $image.position().top);
break;
case 'jrac_crop_width':
$crop.width(value);
break;
case 'jrac_crop_height':
$crop.height(value);
break;
case 'jrac_image_width':
if ($image.scale_proportion_locked) {
var image_height = Math.round($image.height() * value / $image.width());
$image.height(image_height);
this.notify('jrac_image_height', image_height);
}
$image.width(value);
$zoom_widget.slider('value', value);
break;
case 'jrac_image_height':
if ($image.scale_proportion_locked) {
var image_width = Math.round($image.width() * value / $image.height());
$image.width(image_width);
this.notify('jrac_image_width', image_width);
$zoom_widget.slider('value', image_width);
}
$image.height(value);
break;
}
this.notify(that, value);
}
}
});
// Hide the loading notice
$loading.hide();
$loading.remove();
// Finally display the image
$image.show();
// Trigger the viewport_onload callback
if ($.isFunction(settings.viewport_onload)) {
settings.viewport_onload.call($viewport);
$viewport.observator.notify_all();
}
};
// When an image is using an src image "data" URL scheme then it appear
// that the image load event never get fired. Then fire directly
// image_load_handler() in that case.
var src = $image.attr('src');
if (/^data:image/.test(src)) {
image_load_handler();
}
else {
src = src + (src.search(/\?/)<0?'?':'&') + 'jracrandom=' + (new Date()).getTime();
$('<img>').attr('src', src).load(image_load_handler);
}
});
};
})( jQuery );
这个
$.fn.jracIMG = function(elem,param) {
$(elem).find("img").jrac({
'crop_resize':param["crop_resize"],
'viewport_resize': param["viewport_resize"],
'crop_width': param["crop_width"],
'crop_height': param["crop_height"],
'crop_x': param["crop_x"],
'crop_y': param["crop_y"],
'image_width' : param["image_width"] ? param["image_width"] : 550,
'viewport_onload': function() {
var $viewport = this;
//$viewport.$image.draggable("destroy");
var inputs = $viewport.$container.parent('.pane').find('.coords input:hidden');
var events = ['jrac_crop_x', 'jrac_crop_y', 'jrac_crop_width', 'jrac_crop_height', 'jrac_image_width', 'jrac_image_height'];
for (var i = 0; i < events.length; i++) {
var event_name = events[i];
// Register an event with an element.
$viewport.observator.register(event_name, inputs.eq(i));
// Attach a handler to that event for the element.
inputs.eq(i).bind(event_name, function(event, $viewport, value) {
$(this).val(value);
})
// Attach a handler for the built-in jQuery change event, handler
// which read user input and apply it to relevent viewport object.
.change(event_name, function(event) {
var event_name = event.data;
$viewport.$image.scale_proportion_locked = $viewport.$container.parent('.pane').find('.coords input:checkbox').is(':checked');
$viewport.observator.set_property(event_name, $(this).val());
});
}
$viewport.$container.find(".imgnatsize").remove();
$viewport.$container.append('<div class=imgnatsize>Image natual size: '
+ $viewport.$image.originalWidth + ' x '
+ $viewport.$image.originalHeight + '</div>')
}
})
// React on all viewport events.
.bind('jrac_events', function(event, $viewport) {
var inputs = $(this).parents('.pane').find('.coords input');
//inputs.css('background-color', ($viewport.observator.crop_consistent()) ? 'chartreuse' : 'salmon');
if ($viewport.observator.crop_consistent()) {
inputs.removeClass('_err').addClass('_suc');
} else {
inputs.removeClass('_suc').addClass('_err');
}
});
}
$.fn.containerFix = function(container) {
container = $(container);
var mTop = container.outerHeight() / 2;
container.css({
'margin-top': -mTop,
});
};
$.fn.createCropPanel = function() {
var elem;
elem = "<div class='pane clearfix'>";
elem += "<img class='cropPreview' />";
elem += "<form class='cropPanelForm' method='post'>";
elem += "<div class='coords'>";
elem += "<input type='hidden' name='cropx'/>";
elem += "<input type='hidden' name='cropy'/>";
elem += "<input type='hidden' name='cropw'/>";
elem += "<input type='hidden' name='croph'/>";
elem += "<input type='hidden' name='imagew'/>";
elem += "<input type='hidden' name='imageh'/>";
elem += "<input type='hidden' name='imagefilename'/>";
elem += "<input type='hidden' name='imagefiledirectory'/>";
elem += "<input type='hidden' name='is_dashboard' value='0'/>";
elem += "<input type='submit' value='Crop & Save' class='btn-cta btn-cta-sm b-styled' />";
elem += "<input type='hidden' name='logofilename'/>";
elem += "<input type='hidden' name='logofiledirectory'/>";
elem += "<input type='hidden' name='sliderfilename'/>";
elem += "<input type='hidden' name='sliderfiledirectory'/>";
elem += "</div>";
elem += "</form>";
elem += "</div>";
return elem;
};
$.fn.createCropPanelOnboard = function() {
var elem;
elem = "<div class='pane clearfix'>";
elem += "<img class='cropPreview' />";
elem += "<form class='cropPanelForm' method='post'>";
elem += "<div class='coords'>";
elem += "<input type='hidden' name='cropx'/>";
elem += "<input type='hidden' name='cropy'/>";
elem += "<input type='hidden' name='cropw'/>";
elem += "<input type='hidden' name='croph'/>";
elem += "<input type='hidden' name='imagew'/>";
elem += "<input type='hidden' name='imageh'/>";
elem += "<input type='hidden' name='imagefilename'/>";
elem += "<input type='hidden' name='imagefiledirectory'/>";
elem += "<input type='hidden' name='is_dashboard' value='0'/>";
//elem += "<input type='submit' id='crop_btn' value='Crop & Save' class='btn-cta btn-cta-sm b-styled' />";
elem += "<a href='javascript:;' class='btn-cta btn-cta-sm b-styled' id='crop_btn' >Crop & Save</a>";
elem += "<input type='hidden' name='logofilename'/>";
elem += "<input type='hidden' name='logofiledirectory'/>";
elem += "<input type='hidden' name='sliderfilename'/>";
elem += "<input type='hidden' name='sliderfiledirectory'/>";
elem += "</div>";
elem += "</form>";
elem += "</div>";
return elem;
};
任何帮助都将不胜感激。
解决方案
我将这些功能定义放在
中$(document).ready(function(){
//Both files code goes here
});
现在它的工作就像一个魅力。
答案 0 :(得分：0)
过去我遇到过同样的问题，您是否尝试过使用CDN而不是自己托管代码？
我建议使用谷歌的CDN，因为他们拥有非常快的服务器，并且不会减慢客户端的速度。您并使用<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.0/jquery.min.js"></script>代替您的文件。
我希望这会对你有所帮助。
答案 1 :(得分：0)
我将这些函数定义，函数放在
中的文件中$(document).ready(function(){
//Both files code goes here
});
现在它的工作就像一个魅力。