diff options
Diffstat (limited to 'js')
| -rw-r--r-- | js/keyboard-shortcuts.js | 203 |
1 files changed, 155 insertions, 48 deletions
diff --git a/js/keyboard-shortcuts.js b/js/keyboard-shortcuts.js index 64b7ee15..1af672cc 100644 --- a/js/keyboard-shortcuts.js +++ b/js/keyboard-shortcuts.js @@ -1,55 +1,61 @@ // author: joakimoa -// keyboard navigation option -// v1.2 +// keyboard navigation +// v1.4 $(document).on("ready", function() { -// adding checkbox for turning on/off +// adding keyboard navigation to options menu if (window.Options && Options.get_tab('general')) { - Options.extend_tab("general", - "<fieldset><legend> Keyboard Navigation </legend>" + - ("<label class='keyboardnav' id='keyboardnav' style='padding:0px;'><input type='checkbox' /> Enable Keyboard Navigation</label>") + - "<table><tr><td>Action</td><td>Key (a-z)</td></tr>" + - "<tr><td>Next Reply</td><td><input class='field' name='next-reply' spellcheck='false'></td></tr>" + - "<tr><td>Previous Reply</td><td><input class='field' name='previous-reply' spellcheck='false'></td></tr>" + - "<tr><td>Expand File</td><td><input class='field' name='expando' spellcheck='false'></td></tr>" + + Options.extend_tab("general", + "<fieldset><legend> Keyboard Navigation </legend>" + + ("<label class='keyboardnav' id='keyboardnav' style='padding:0px;'><input type='checkbox' /> Enable Keyboard Navigation</label>") + + "<table><tr><td>Action</td><td>Key (a-z)</td></tr>" + + "<tr><td>Next Reply</td><td><input class='field' name='next-reply-input' spellcheck='false'></td></tr>" + + "<tr><td>Previous Reply</td><td><input class='field' name='previous-reply-input' spellcheck='false'></td></tr>" + + "<tr><td>Expand File</td><td><input class='field' name='expando-input' spellcheck='false'></td></tr>" + + "<tr><td>Refresh Thread</td><td><input class='field' name='refresh-thread-input' spellcheck='false'></td></tr>" + "</table></fieldset>"); } $('.keyboardnav').on('change', function(){ - var setting = $(this).attr('id'); - localStorage[setting] = $(this).children('input').is(':checked'); + var setting = $(this).attr('id'); + localStorage[setting] = $(this).children('input').is(':checked'); }); +var nextReplyKeycode = 74; // j +var previousReplyKeycode = 75; // k +var expandoKeycode = 69; // e +var refreshThreadKeycode = 82; // r + if (!localStorage.keyboardnav) { - localStorage.keyboardnav = 'false'; + localStorage.keyboardnav = 'false'; } if (!localStorage["next.reply.key"]) { - localStorage["next.reply.key"] = 74; + localStorage["next.reply.key"] = nextReplyKeycode; } if (!localStorage["previous.reply.key"]) { - localStorage["previous.reply.key"] = 75; + localStorage["previous.reply.key"] = previousReplyKeycode; } if (!localStorage["expando.key"]) { - localStorage["expando.key"] = 69; + localStorage["expando.key"] = expandoKeycode; +} +if (!localStorage["refresh.thread.key"]) { + localStorage["refresh.thread.key"] = refreshThreadKeycode; } // getting locally stored setting function getSetting(key) { - return (localStorage[key] == 'true'); + return (localStorage[key] == 'true'); } function isKeySet(key) { return (localStorage[key] !== false); } -var nextReplyInput = document.getElementsByName("next-reply")[0]; -var previousReplyInput = document.getElementsByName("previous-reply")[0]; -var expandoInput = document.getElementsByName("expando")[0]; - -var nextReplyKeycode = 74; // j -var previousReplyKeycode = 75; // k -var expandoKeycode = 69; // e +var nextReplyInput = document.getElementsByName("next-reply-input")[0]; +var previousReplyInput = document.getElementsByName("previous-reply-input")[0]; +var expandoInput = document.getElementsByName("expando-input")[0]; +var refreshThreadInput = document.getElementsByName("refresh-thread-input")[0]; if (getSetting('keyboardnav')) $('#keyboardnav>input').prop('checked', 'checked'); if (isKeySet('next.reply.key')) { @@ -64,14 +70,20 @@ if (isKeySet('expando.key')) { expandoKeycode = localStorage["expando.key"]; expandoInput.value = expandoKeycode; } +if (isKeySet('refresh.thread.key')) { + refreshThreadKeycode = localStorage["refresh.thread.key"]; + refreshThreadInput.value = refreshThreadKeycode; +} -document.getElementsByName("next-reply")[0].value = String.fromCharCode(nextReplyKeycode); -document.getElementsByName("previous-reply")[0].value = String.fromCharCode(previousReplyKeycode); -document.getElementsByName("expando")[0].value = String.fromCharCode(expandoKeycode); +nextReplyInput.value = String.fromCharCode(nextReplyKeycode); +previousReplyInput.value = String.fromCharCode(previousReplyKeycode); +expandoInput.value = String.fromCharCode(expandoKeycode); +refreshThreadInput.value = String.fromCharCode(refreshThreadKeycode); nextReplyInput.addEventListener("keyup", changeNextReplyKey, false); previousReplyInput.addEventListener("keyup", changePreviousReplyKey, false); expandoInput.addEventListener("keyup", changeExpandoKey, false); +refreshThreadInput.addEventListener("keyup", changeRefreshThreadKey, false); function changeNextReplyKey(e) { nextReplyInput.value = ""; @@ -97,31 +109,88 @@ function changeExpandoKey(e) { } } +function changeRefreshThreadKey(e) { + refreshThreadInput.value = ""; + if (e.keyCode >= 65 && e.keyCode <= 90) { + refreshThreadInput.value = String.fromCharCode(e.keyCode); + localStorage["refresh.thread.key"] = e.keyCode; + } +} + // loads the main function function loadKeyboardNav() { var replies = document.getElementsByClassName("post reply"); var current_file = null; + var default_color = "#333"; var highlight_color = "#555"; - var default_color = "black"; - if (replies.length > 0) default_color = window.getComputedStyle(replies[0], null).getPropertyValue("background-color"); - var reply_indexx = 0; + // grabs base and highlight colors + if (replies.length > 0) { + if (replies[0].classList.contains("highlighted")) { + replies[0].classList.remove('highlighted'); + default_color = window.getComputedStyle(replies[0], null).getPropertyValue("background-color"); + replies[0].classList.add('highlighted'); + highlight_color = window.getComputedStyle(replies[0], null).getPropertyValue("background-color"); + } else { + default_color = window.getComputedStyle(replies[0], null).getPropertyValue("background-color"); + replies[0].classList.add('highlighted'); + highlight_color = window.getComputedStyle(replies[0], null).getPropertyValue("background-color"); + replies[0].classList.remove('highlighted'); + } + } + + // check if user is in textareas where hotkeys needs to be disabled + var text_input_focused = false; + function checkFocused () { + var el = document.activeElement; + if (el && (el.tagName.toLowerCase() == 'input' && el.type == 'text' || + el.tagName.toLowerCase() == 'textarea')) { + text_input_focused = true; + } else { + text_input_focused = false; + } + } + + document.addEventListener('focus',function(e){ + checkFocused(); + }, true); + + document.addEventListener('blur',function(e){ + text_input_focused = false; + }, true); + + // strips out <a href="" class="file"> tags + function getFileList(e) { + var arr = []; + var e = e.getElementsByClassName("file"); + if (e.length > 0) { + for (i = 0; i < e.length; i++) { + if (e[i].tagName === "DIV") { + arr.push(e[i]); + } + } + } + return arr; + } + + var reply_indexx = -1; // might change back to 0 var image_indexx = -1; function focusNextReply() { if (reply_indexx < replies.length-1) { reply_indexx++; image_indexx = -1; - var images = replies[reply_indexx].getElementsByClassName("file"); + var images = getFileList(replies[reply_indexx]); if (images.length !== 0) { focusNextImage(); } else { - scrollTo(replies[reply_indexx]); + scrollTo(replies[reply_indexx], true); } } } function focusNextImage() { - var images = replies[reply_indexx].getElementsByClassName("file"); + var images = getFileList(replies[reply_indexx]); + if (images.length === 0) { focusNextReply(); } else { @@ -130,7 +199,11 @@ function loadKeyboardNav() { image_indexx = 0; focusNextReply(); } else { - scrollTo(images[image_indexx]); + var im = images[image_indexx].getElementsByClassName("full-image"); + if (im.length === 0) { + im = images[image_indexx].getElementsByClassName("post-image"); + } + scrollTo(im[0], true); } } } @@ -138,19 +211,19 @@ function loadKeyboardNav() { function focusPreviousReply() { if (reply_indexx > 0) { reply_indexx--; - var images = replies[reply_indexx].getElementsByClassName("file"); + var images = getFileList(replies[reply_indexx]); image_indexx = images.length; if (images.length !== 0) { focusPreviousImage(); } else { image_indexx = -1; - scrollTo(replies[reply_indexx]); + scrollTo(replies[reply_indexx], false); } } } function focusPreviousImage() { - var images = replies[reply_indexx].getElementsByClassName("file"); + var images = getFileList(replies[reply_indexx]); if (images.length === 0) { focusPreviousReply(); } else { @@ -159,17 +232,42 @@ function loadKeyboardNav() { image_indexx = 0; focusPreviousReply(); } else { - scrollTo(images[image_indexx]); + var im = images[image_indexx].getElementsByClassName("full-image"); + if (im.length === 0) { + im = images[image_indexx].getElementsByClassName("post-image") + } + scrollTo(im[0], false); } } } - function scrollTo(e) { - if (current_file !== null) { + // from https://gist.github.com/jjmu15/8646226 + function isInViewport(element) { + var rect = element.getBoundingClientRect(); + var html = document.documentElement; + return ( + rect.top >= 0 && + rect.left >= 0 && + rect.bottom <= (window.innerHeight || html.clientHeight) && + rect.right <= (window.innerWidth || html.clientWidth) + ); + } + + function scrollTo(e, direction_down) { + if (current_file !== null && !current_file.classList.contains("highlighted")) { current_file.style.backgroundColor = default_color; } current_file = e; - e.scrollIntoView(); + if (!isInViewport(e)) { + if (direction_down) { + e.scrollIntoView(false); + window.scrollBy(0, 30); + } else { + e.scrollIntoView(); + window.scrollBy(0, -30); + } + } + e.style.backgroundColor = highlight_color; } @@ -184,12 +282,21 @@ function loadKeyboardNav() { window.addEventListener("keydown", checkKeyPressed, false); function checkKeyPressed(e) { - if (e.keyCode == nextReplyKeycode) { - focusNextImage(); - } else if (e.keyCode == previousReplyKeycode) { - focusPreviousImage(); - } else if (e.keyCode == expandoKeycode) { - expandFile(); + if (!text_input_focused) { + replies = document.getElementsByClassName("post reply"); // if new ones via AJAX + if (e.keyCode == nextReplyKeycode) { + if (reply_indexx === -1) { // needed for initial condition + focusNextReply(); + } else { + focusNextImage(); + } + } else if (e.keyCode == previousReplyKeycode) { + focusPreviousImage(); + } else if (e.keyCode == expandoKeycode) { + expandFile(); + } else if (e.keyCode == refreshThreadKeycode) { + document.getElementById("update_thread").click(); + } } } } @@ -199,4 +306,4 @@ if (getSetting('keyboardnav') && document.getElementsByClassName("thread").lengt loadKeyboardNav(); } -}); +});
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