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[wolnelektury.git] / apps / wolnelektury_core / static / js / picture.js

diff --git a/apps/wolnelektury_core/static/js/picture.js b/apps/wolnelektury_core/static/js/picture.js
index dca2d13..2464220 100644 (file)
--- a/apps/wolnelektury_core/static/js/picture.js
+++ b/apps/wolnelektury_core/static/js/picture.js
@@ -1,28 +1,42 @@
 
 (function($) {
   $.widget('wl.pictureviewer', {
 
 (function($) {
   $.widget('wl.pictureviewer', {

-
+    

     options: {
     options: {

-      steps: 6, // steps of zoom
-      max: 300, // max zoom in percent
+      step: 20, // step in % of initial image

       plus_button: undefined,
       plus_button: undefined,

-      minus_button: undefined
+      minus_button: undefined,

     },
     },

+    ORIGINAL_LOADING: 0, 
+    ORIGINAL_AVAILABLE: 1, 
+    ORIGINAL_SHOWN: 2,

 
     _create: function() {
       var self = this;
 
     _create: function() {
       var self = this;

-      self._zoom = 0;

       self.initial_size = [ 
       self.initial_size = [ 

-       self.element.width(),
-       self.element.height()
+       self.element.data('width'),
+       self.element.data('height') 
+      ];
+      self.original_size = [
+       self.element.data('original-width'),
+       self.element.data('original-height')

       ];
       ];

-      self.initial_position = self.element.offset();
+      self._zoom = 0;
+      self._ratio = 1.0;
+
+      self.original = $('<img src="'+ self.element.attr('data-original-url') +'">');
+      
+      self._original_avaialble = self.ORIGINAL_LOADING;
+      function original_loaded() {
+       self._original_avaialble = self.ORIGINAL_AVAILABLE;
+       self.options.plus_button.removeClass('inactive');
+       self.options.minus_button.removeClass('inactive');
+       console.log("Original image available, sizes initial: " + self.initial_size + ", original: " + self.original_size);
+      };
+      self.original.load(original_loaded);

 
 

-      self.element.css({
-       'margin': 0,
-       'position': 'absolute',
-      });
-      self.element.offset(self.initial_position);
+      self.element.width(self.initial_size[0]);
+      self.element.height(self.initial_size[1]);

 
       if (self.options.plus_button)
        self.options.plus_button.click(
 
       if (self.options.plus_button)
        self.options.plus_button.click(


@@ -31,19 +45,77 @@
        self.options.minus_button.click(
          function(ev) { self.zoom(-1); });
 
        self.options.minus_button.click(
          function(ev) { self.zoom(-1); });
 

-      function contain(event, ui) {
-       var fix = self.allowedPosition(ui.position);
-       console.log("fix: ", fix);
-       if (fix !== undefined) {
-         return false;
-       };
-      };
-      self.element.draggable({drag: contain});
+      self._initial_mark = null;
+      function clean_initial_mark() {
+       if (self._initial_mark) {
+         self._initial_mark.remove();
+         self._initial_mark = null;
+       }
+      }
+      var initial_hash = window.location.hash;
+      if (initial_hash) {
+       var mk = null,
+        objectPrefix = '#object-',
+        themePrefix = '#theme-';
+       if (initial_hash.substr(0, objectPrefix.length) === objectPrefix) {
+         $("[href=#picture-objects]").trigger('click');
+       } else if (initial_hash.substr(0, themePrefix.length) === themePrefix) {
+         $("[href=#picture-themes]").trigger('click');
+       }
+       mk = $("[href=" + initial_hash + "]").eq(0);
+       self._initial_mark = self.createMark({
+         label: mk.text(),
+         coords: mk.data('coords')
+       });
+      }      
+
+
+      self.options.areas_links.hover(function() {
+       clean_initial_mark();
+       $this = $(this);
+       var coords = $this.data("coords");
+       this._picture_mark = self.createMark({
+//       label: $this.text(),
+         coords: coords,
+       });
+      }, function() {
+       $(this._picture_mark).remove();
+       this._picture_mark = undefined;
+      }).click(function(ev) {
+       ev.preventDefault();
+       var $mark = self.element.find('.mark').eq(0);
+       var markPos = $mark.offset();
+       markPos = [markPos.left, markPos.top];
+       var markSize = [ $mark.width(), $mark.height() ]
+       var wSize = [ window.innerWidth, window.innerHeight ];
+       window.scrollTo(
+         markPos[0] + markSize[0]/2 - wSize[0]/2,
+         markPos[1] + markSize[1]/2 - wSize[1]/2       
+       );
+       
+      });
+
+      

 
       return self;
     },
 
 
       return self;
     },
 

+    currentSize: function() {
+      return [this.element.width(), this.element.height() ];
+    },
+
+    currentZoom: function() { return this._zoom; },
+
+    initOriginal: function() {
+      if (this._original_avaialble > this.ORIGINAL_LOADING && 
+         this._original_avaialble < this.ORIGINAL_SHOWN) {
+       this.element.css({'background-image': 'url('+ this.original.attr('src')+')', 'background-size':  this.initial_size[0]+'px'});
+       this._original_avaialble = this.ORIGINAL_SHOWN;
+      };
+    },
+

     zoom: function(steps) {
     zoom: function(steps) {

+      this.initOriginal();

       var t = this._zoom + steps;
       return this.zoomTo(t);
     },
       var t = this._zoom + steps;
       return this.zoomTo(t);
     },


@@ -51,22 +123,36 @@
     zoomForStep: function(step) {
       // 0 => initial
       // max_step-1 => max %
     zoomForStep: function(step) {
       // 0 => initial
       // max_step-1 => max %

-      return 100 + (this.options.max - 100) / this.options.steps * step
+      if (step < 0) step = 0;
+      var zoomperc = 100 + step * this.options.step;
+      if (zoomperc * this.initial_size[0] > this.original_size[0] * 100) {
+       zoomperc = this.original_size[0] * 100 / this.initial_size[0];
+      };
+      return zoomperc;

     },
 
     zoomTo: function(level) {
     },
 
     zoomTo: function(level) {

-      if (level < 0 || level > this.options.steps)
-       return;

       var ratio = this.zoomForStep(level) / 100;
       var new_width  = ratio * this.initial_size[0];
       var new_height = ratio * this.initial_size[1];
       var ratio = this.zoomForStep(level) / 100;
       var new_width  = ratio * this.initial_size[0];
       var new_height = ratio * this.initial_size[1];

+      var cs = this.currentSize();
+      if (new_width == cs[0]) 
+       return;
+

       var target = {
       var target = {

-       'width': new_width,
-       'left': this.initial_position.left - (new_width - this.initial_size[0])/2,
-       'top': this.initial_position.top - (new_height - this.initial_size[1])/2,
+       'width': new_width + 'px',
+       'height': new_height + 'px',
+       'background-size': new_width + 'px',

       };
       };

+

       this._zoom = level;
       this._zoom = level;

-      this.element.animate(target, 200); // default duration=400
+      this._ratio = ratio;
+
+      this.element.css(target);
+      if (this._initial_mark) {
+       this._initial_mark = this.redrawMark(this._initial_mark);
+      }
+

     },
 
     allowedPosition: function(off) {
     },
 
     allowedPosition: function(off) {


@@ -108,14 +194,60 @@
       return undefined;
 
     },
       return undefined;
 
     },

+    redrawMark: function(mark) {
+      var $mark = $(mark);
+      var $newmark = this.createMark($mark.data('mark'));
+      $mark.remove();
+      return $newmark;
+    },
+    // mark
+    // {
+    //  label: "...",
+    //  coords: [x, y, w, h]
+    // }
+    createMark: function(mark) {
+      if (mark.label === undefined)
+       mark.label = '';
+      var $mark = $('<div class="mark"><div class="label">' + 
+                   mark.label + '</div></div>');
+      var cs = this.currentSize()
+      var ratio = cs[0] / this.original_size[0];
+      var scale = function (v) { 
+       return v * ratio; 
+      }
+      if (mark.coords[1][0] < 0 || mark.coords[1][1] < 0) { // whole
+       var s = this.original_size;
+       if (mark.coords[1][0] < 0) mark.coords[1][0] = s[0];
+       if (mark.coords[1][1] < 0) mark.coords[1][1] = s[1];
+      }
+
+      var coords = [[scale(mark.coords[0][0]), scale(mark.coords[0][1])],
+                   [scale(mark.coords[1][0]), scale(mark.coords[1][1])]];
+      this.element.append($mark);
+      $mark.width(coords[1][0] - coords[0][0]);
+      $mark.height(coords[1][1] - coords[0][1]);
+      $mark.css({left: coords[0][0], top: coords[0][1]});
+
+      $mark.data('mark', mark);
+      return $mark.get(0);
+    },

   });
   });

-}(jQuery));

 
 
 
 

-$(document).ready(function(){
-  $("img.canvas").pictureviewer({
-    plus_button: $(".toolbar .button.plus"),
-    minus_button: $(".toolbar .button.minus")
+$(document).ready(function() {
+  $.highlightFade.defaults.speed = 3000;
+
+  $('#menu .dropdown').each(function() {
+    $t = $(this);
+    $($t.attr('href')).hide().insertAfter(this);

   });
   });

+
+  $(".picture-wrap").pictureviewer({
+    plus_button: $(".button.plus"),
+    minus_button: $(".button.minus"),
+    areas_links: $("#picture-objects a, #picture-themes a"),
+  });
+

 });
 
 });
 

+}(jQuery));