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Diffstat (limited to 'abs/core/local-website/htdocs/linhes/js/utils.js')
| -rw-r--r-- | abs/core/local-website/htdocs/linhes/js/utils.js | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/abs/core/local-website/htdocs/linhes/js/utils.js b/abs/core/local-website/htdocs/linhes/js/utils.js new file mode 100644 index 0000000..e6c0605 --- /dev/null +++ b/abs/core/local-website/htdocs/linhes/js/utils.js @@ -0,0 +1,173 @@ +/** + * A random assortment of javascript utility routines + * + * @url $URL: http://cvs.mythtv.org/svn/branches/release-0-22-fixes/mythplugins/mythweb/js/utils.js $ + * @date $Date: 2008-02-22 22:15:51 +0000 (Fri, 22 Feb 2008) $ + * @version $Revision: 16207 $ + * @author $Author: xris $ + * @license LGPL + * +/**/ + +// For some reason, calling "value" from within onclick doesn't work +// Seems to be a name conflict somewhere, but I can't find it. + function set_field(id, val) { + value(id, val); + } + +// Pass in value to change, otherwise it returns the value of the "e" element + function value(e, new_value) { + e = $(e); + if (!e) + return ''; + // A <select> + if (e.options) + return value(e.options[e.selectedIndex]); + // Just an html element? (or in IE, an option element with no value="" specified) + else if (e.value == null || e.tagName.toLowerCase() == 'option' && e.value == '') { + if (new_value != null) + e.innerHTML = new_value; + return e.innerHTML; + } + // Form field + if (new_value != null) + e.value = new_value; + return e.value; + } + +// Overwrite the href attribute of all <a> tags with a js_href attribute + Event.observe(window, 'load', add_js_attributes); + function add_js_attributes() { + // Get all links in this form + var links = $$('a'); + for (var i=0; i<links.length; i++) { + // js_href + var js_href = links[i].getAttribute('js_href'); + if (js_href && js_href.length) + links[i].href = js_href; + } + } + +// Image Preloader + var img_on = new Array(); + var img_off = new Array(); + function preload_image(id, on, off) { + img_on[id] = new Image(); + img_on[id].src = on; + if (off) { + img_off[id] = new Image(); + img_off[id].src = off; + } + } + +// Functions to swap on/off states of images + function on(which) { + var img = $(which); + img.src=img_on[which].src; + } + function off(which) { + var img = $(which); + img.src=img_off[which].src; + } + +// Submit a form + function submit_form(newvar, val, form, confirm_str) { + // Confirm? + if (confirm_str && !confirm(confirm_str)) + return; + // Find the form we want to submit + form = $(form ? form : 'form'); + if (!form) + form = document.form ? document.form : document.forms[0]; + // Create a new variable? + if (newvar) { + var hidden = document.createElement('input'); + hidden.type = 'hidden'; + hidden.name = newvar; + hidden.value = val != null ? val : 1; + form.appendChild(hidden); + } + // Submit + form.submit(); + } + +// Check/uncheck a checkbox + function toggle_checkbox(id, check) { + var e = $(id); + if (check) + e.checked = true; + else if (check != null) + e.checked = false; + else + e.checked = e.checked ? false : true; + } + +// Change the help text + function help_text(text) { + // Set the text + $('help_text').innerHTML = text; + // Toggle the regions + $('help_text_default').toggle(); + $('help_text').toggle(); + } + + +// Return a time in hours and minutes + function nice_length(mylength, rx_hr, rx_hrs, rx_min, rx_mins) { + var mins = Math.round((mylength % 3600) / 60); + var hours = Math.round(mylength / 3600); + var ret; + if (hours) { + if (hours > 1) + ret = rx_hrs.replace(/\$1/, hours); + else + ret = rx_hr.replace(/\$1/, hours); + } + else + ret = ''; + if (mins > 0) { + if (ret.length) + ret = ret + ' '; + if (mins > 1) + ret = ret + rx_mins.replace(/\$1/, mins); + else + ret = ret + rx_min.replace(/\$1/, mins); + } + return ret; + } + +// Return a human-readable filesize + function nice_filesize(size) { + var kb = 1024; // Kilobyte + var mb = 1024 * kb; // Megabyte + var gb = 1024 * mb; // Gigabyte + var tb = 1024 * gb; // Terabyte + // If it's less than a kb we just return the size + if (size < kb) + return size + ' B'; + // Otherwise we keep going until the size is in the appropriate measurement range. + else if (size < mb) + return Math.round(size/kb) + ' KB'; + else if (size < gb) + return Math.round(size/mb) + ' MB'; + else if (size < tb) + return Math.round(size/gb) + ' GB'; + else + return Math.round(size/tb) + ' TB'; + } + +// The routines to allow a small ajax request counter... + var pending_ajax_requests = 0; + + function ajax_add_request() { + pending_ajax_requests += 1; + $('ajax_num_requests').innerHTML = pending_ajax_requests; + $('ajax_working').removeClassName('hidden'); + } + + function ajax_remove_request() { + pending_ajax_requests -= 1; + $('ajax_num_requests').innerHTML = pending_ajax_requests; + if (pending_ajax_requests == 0) + $('ajax_working').addClassName('hidden'); + } |