First commit

uc_server/js/avatar/avatar.js

@@ -0,0 +1,320 @@
+function $(id) {
+    return !id ? null : document.getElementById(id);
+}
+
+function getQueryVariable(variable) {
+    var query = window.location.search.substring(1);
+    var vars = query.split("&");
+    for (var i = 0; i < vars.length; i++) {
+        var pair = vars[i].split("=");
+        if (pair[0] == variable) {
+            return pair[1];
+        }
+    }
+    return (false);
+}
+
+jQuery.noConflict();
+var dwidth = getQueryVariable('width') > 0 ? getQueryVariable('width') : 450;
+var dheight = getQueryVariable('height') > 0 ? getQueryVariable('height') : 253;
+jQuery('#avatardesigner').width(dwidth - 25);
+jQuery('#avatardesigner').height(dheight - 25);
+jQuery('#widgetparent').width(dwidth - 150);
+jQuery('#widgetparent').height(dheight - 25);
+jQuery('#selector').width(150);
+jQuery('#selector').height(150);
+jQuery('#avatarfileselector').width(dwidth - 25);
+jQuery('#avatarfileselector').height(dheight - 25);
+jQuery('#avatarfile').width(dwidth - 25);
+jQuery('#avatarfile').height(dheight - 25);
+
+jQuery('#avatarcanvas').attr('width', (dwidth - 150));
+jQuery('#avatarcanvas').attr('height', dheight - 25);
+jQuery('#avatardisplaycanvas').attr('width', dwidth - 25);
+jQuery('#avatardisplaycanvas').attr('height', dheight - 25);
+$('avatarform').target = 'uploadframe';
+$('avatarfile').onchange = uploadAvatarDone;
+
+jQuery(document).ready(function () {
+    jQuery("#selector")
+        .draggable({ containment: "parent", drag: function (event, ui) { refreshAvatarCanvas(ui.position); }, stop: function () { forceSelectorInsideAvatar(); } })
+        .resizable({ containment: "parent", resize: function (event, ui) { refreshAvatarCanvas(ui.position); }, stop: function () { forceSelectorInsideAvatar(); } })
+        .hover(
+            function () { jQuery(this).css({ "border-color": "red" }); },
+            function () { jQuery(this).css({ "border-color": "rgba(255, 0, 0, 0.6)" }); }
+        );
+    jQuery("#slider").slider({
+        min: 0,
+        max: 100,
+        value: 50,
+        slide: function (event, ui) {
+            forceSelectorInsideAvatar();
+        }
+    });
+    jQuery("#slider").append("<div style='position: absolute; top: -2px; left: 0px; width: 3px; height: 6px; background-color: black;'>&nbsp;</div>");
+    jQuery("#slider").append("<div style='position: absolute; top: -2px; left: 50px; width: 3px; height: 6px; background-color: black;'>&nbsp;</div>");
+    jQuery("#slider").append("<div style='position: absolute; top: -2px; left: 100px; width: 3px; height: 6px; background-color: black;'>&nbsp;</div>");
+});
+
+window.addEventListener('message', receiveMessage, false);
+
+function receiveMessage(event) {
+    var msgdata = event.data;
+    if (typeof (msgdata) !== 'string') {
+        return;
+    }
+    rectAvatarDone(msgdata);
+}
+
+function uploadAvatarDone() {
+    if (this.files && this.files[0]) {
+        var fr = new FileReader();
+        fr.onload = function (e) {
+            jQuery('#avatarfileselector').hide();
+            jQuery('#avatardisplayer').hide();
+            jQuery('#avataradjuster').show();
+            jQuery('#selector').css('left', Math.floor((dwidth - 300) / 2));
+            jQuery('#selector').css('top', Math.floor((dheight - 150) / 2));
+            jQuery('#selector').width(150);
+            jQuery('#selector').height(150);
+            $('avatarimage').src = e.target.result;
+            jQuery("#slider").slider('value', 50);
+        };
+        fr.readAsDataURL(this.files[0]);
+    }
+}
+
+function showAvatarFileSelector() {
+    $('avatarimage').src = null;
+    clearAvatar();
+    $('avataradjuster').style.display = 'none';
+    $('avatarfileselector').style.display = 'block';
+}
+
+function getAvatarDimension() {
+    var factor = jQuery('#slider').slider('option', 'value');
+    var cw = jQuery('#widgetparent').width();
+    var ch = jQuery('#widgetparent').height();
+    var iw = jQuery('#avatarimage').width();
+    var ih = jQuery('#avatarimage').height();
+    var minw = 48;
+    var minh = 48;
+    var midw = Math.min(Math.max(iw, 48), cw);
+    var midh = Math.min(Math.max(ih, 48), ch);
+    var maxw = Math.max(Math.max(iw, 48), cw);
+    var maxh = Math.max(Math.max(ih, 48), ch);
+    var minr = Math.max(minw / iw, minh / ih);
+    var midr = Math.max(midw / iw, midh / ih);
+    var maxr = Math.max(maxw / iw, maxh / ih);
+    if (factor <= 50) {
+        r = (minr * (50 - factor) + midr * factor) / 50;
+    }
+    else {
+        r = (midr * (100 - factor) + maxr * (factor - 50)) / 50;
+    }
+    var aw = r * iw;
+    var ah = r * ih;
+    var al = (cw - aw) / 2;
+    var at = (ch - ah) / 2;
+    var sd = getSelectorDimention();
+    if (aw > cw) al = (cw - aw) / (cw - sd.width) * sd.left;
+    if (ah > ch) at = (ch - ah) / (ch - sd.height) * sd.top;
+    return { left: Math.floor(al), top: Math.floor(at), width: Math.floor(aw), height: Math.floor(ah) };
+}
+
+function clearAvatar() {
+    var canvas = $('avatarcanvas');
+    var cw = canvas.width;
+    var ch = canvas.height;
+    var ctx = canvas.getContext('2d');
+    ctx.clearRect(0, 0, cw, ch);
+}
+
+function refreshAvatarCanvas(uiposition) {
+    var canvas = $('avatarcanvas');
+    var cw = canvas.width;
+    var ch = canvas.height;
+    var ctx = canvas.getContext('2d');
+    ctx.clearRect(0, 0, cw, ch);
+    var ad = getAvatarDimension();
+    var iw = jQuery('#avatarimage').width();
+    var ih = jQuery('#avatarimage').height();
+    var img = $('avatarimage');
+    ctx.drawImage(img, 0, 0, iw, ih, ad.left, ad.top, ad.width, ad.height);
+    var sd = getSelectorDimention();
+    if (uiposition) {
+        sd.left = uiposition.left;
+        sd.top = uiposition.top;
+    }
+    ctx.fillStyle = "rgba(0,0,0,0.6)";
+    ctx.fillRect(0, 0, cw, sd.top);
+    ctx.fillRect(sd.left + sd.width, sd.top, cw - sd.left - sd.width, ch - sd.top);
+    ctx.fillRect(0, sd.top + sd.height, sd.left + sd.width, ch - sd.top - sd.height);
+    ctx.fillRect(0, sd.top, sd.left, sd.height);
+}
+
+function getSelectorDimention() {
+    var sl = Math.ceil(jQuery('#selector').position().left);
+    var st = Math.ceil(jQuery('#selector').position().top);
+    var sw = jQuery('#selector').width();
+    var sh = jQuery('#selector').height();
+    return { left: sl, top: st, width: sw, height: sh };
+}
+
+function forceSelectorInsideAvatar() {
+    var sd = getSelectorDimention();
+    var ad = getAvatarDimension();
+    if (sd.width > ad.width) jQuery('#selector').width(ad.width);
+    if (sd.height > ad.height) jQuery('#selector').height(ad.height);
+    sd = getSelectorDimention();
+    if (sd.left < ad.left) jQuery('#selector').css('left', ad.left);
+    if (sd.top < ad.top) jQuery('#selector').css('top', ad.top);
+    if (sd.left + sd.width > ad.left + ad.width) jQuery('#selector').css('left', ad.left + ad.width - sd.width);
+    if (sd.top + sd.height > ad.top + ad.height) jQuery('#selector').css('top', ad.top + ad.height - sd.height);
+    refreshAvatarCanvas();
+}
+
+function saveAvatar() {
+    var img = $('avatarimage');
+    var sd = getSelectorDimention();
+    var ad = getAvatarDimension();
+    var rl = (sd.left - ad.left) / ad.width;
+    var rt = (sd.top - ad.top) / ad.height;
+    var rw = sd.width / ad.width;
+    var rh = sd.height / ad.height;
+    var iw = jQuery('#avatarimage').width();
+    var ih = jQuery('#avatarimage').height();
+    var sl = rl * iw;
+    var st = rt * ih;
+    var sw = rw * iw;
+    var sh = rh * ih;
+    var tw = sw;
+    var th = sh;
+    if (sw > 200 || sh > 250) {
+        var r = Math.max(sw / 200, sh / 250);
+        tw = Math.floor(sw / r);
+        th = Math.floor(sh / r);
+    }
+    var canvas = document.createElement('canvas');
+    canvas.width = tw;
+    canvas.height = th;
+    var ctx = canvas.getContext("2d");
+    ctx.fillStyle = 'white';
+    ctx.fillRect(0, 0, tw, th);
+    ctx.drawImage(img, sl, st, sw, sh, 0, 0, tw, th);
+    var dataURL = canvas.toDataURL("image/jpeg");
+    jQuery('#avatar1').val(dataURL.substr(dataURL.indexOf(",") + 1));
+
+    var tw = sw;
+    var th = sh;
+    if (sw > 120 || sh > 120) {
+        var r = Math.max(sw / 120, sh / 120);
+        tw = Math.floor(sw / r);
+        th = Math.floor(sh / r);
+    }
+    var canvas = document.createElement('canvas');
+    canvas.width = tw;
+    canvas.height = th;
+    var ctx = canvas.getContext("2d");
+    ctx.fillStyle = 'white';
+    ctx.fillRect(0, 0, tw, th);
+    ctx.drawImage(img, sl, st, sw, sh, 0, 0, tw, th);
+    var dataURL = canvas.toDataURL("image/jpeg");
+    jQuery('#avatar2').val(dataURL.substr(dataURL.indexOf(",") + 1));
+
+    var mwh = Math.min(sw, sh);
+    if (sw > mwh) {
+        sl += Math.floor((sw - mwh) / 2);
+        sw = mwh;
+    }
+    if (sh > mwh) {
+        st += Math.floor((sh - mwh) / 2);
+        sh = mwh;
+    }
+    var tw = 48;
+    var th = 48;
+    var canvas = document.createElement('canvas');
+    canvas.width = tw;
+    canvas.height = th;
+    var ctx = canvas.getContext("2d");
+    ctx.fillStyle = 'white';
+    ctx.fillRect(0, 0, tw, th);
+    ctx.drawImage(img, sl, st, sw, sh, 0, 0, tw, th);
+    var dataURL = canvas.toDataURL("image/jpeg");
+    jQuery('#avatar3').val(dataURL.substr(dataURL.indexOf(",") + 1));
+
+    var src = $('avatarform').action;
+    $('avatarform').action = window.location.href.replace('index.php?m=user&a=camera', 'index.php?m=user&a=rectavatar&base64=yes');
+    $('avatarform').target = 'rectframe';
+}
+
+function refreshAvatarCanvasForDisplay() {
+    var img = $('avatarimage');
+    var canvas = $('avatardisplaycanvas');
+    var ctx = canvas.getContext("2d");
+    var sd = getSelectorDimention();
+    var ad = getAvatarDimension();
+    var rl = (sd.left - ad.left) / ad.width;
+    var rt = (sd.top - ad.top) / ad.height;
+    var rw = sd.width / ad.width;
+    var rh = sd.height / ad.height;
+    var iw = jQuery('#avatarimage').width();
+    var ih = jQuery('#avatarimage').height();
+    var sl = rl * iw;
+    var st = rt * ih;
+    var sw = rw * iw;
+    var sh = rh * ih;
+    var tw = sw;
+    var th = sh;
+    if (sw > 200 || sh > 250) {
+        var r = Math.max(sw / 200, sh / 250);
+        tw = Math.floor(sw / r);
+        th = Math.floor(sh / r);
+    }
+    var ctl = 10;
+    var ctt = 10;
+    ctx.drawImage(img, sl, st, sw, sh, ctl, ctt, tw, th);
+    ctl += 20 + tw;
+
+    var tw = sw;
+    var th = sh;
+    if (sw > 120 || sh > 120) {
+        var r = Math.max(sw / 120, sh / 120);
+        tw = Math.floor(sw / r);
+        th = Math.floor(sh / r);
+    }
+    ctx.drawImage(img, sl, st, sw, sh, ctl, ctt, tw, th);
+    ctl += 20 + tw;
+
+    var tw = 48;
+    var th = 48;
+    var mwh = Math.min(sw, sh);
+    if (sw > mwh) {
+        sl += Math.floor((sw - mwh) / 2);
+        sw = mwh;
+    }
+    if (sh > mwh) {
+        st += Math.floor((sh - mwh) / 2);
+        sh = mwh;
+    }
+    ctx.drawImage(img, sl, st, sw, sh, ctl, ctt, tw, th);
+
+    ctx.fillStyle = "black";
+    ctx.font = "bold 16px Arial";
+    ctx.fillText('上传成功!', dwidth - 160, 155);
+    ctx.fillStyle = "grey";
+    ctx.font = "bold 12px Arial";
+    ctx.fillText('以上是您头像的三种尺寸', dwidth - 200, 180);
+}
+
+function rectAvatarDone(res) {
+    if (!res) return;
+    if (res == 'success') {
+        jQuery('#avatardisplayer').show();
+        refreshAvatarCanvasForDisplay();
+        jQuery('#avataradjuster').hide();
+        jQuery('#avatarfileselector').hide();
+    } else if (res == 'failure') {
+        alert('上传失败');
+    }
+}