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hotkey.js: Add hotkey for drafts.

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* 'd' in message view opens drafts.

This also adds hotkeys within the drafts UI:
* Up/down arrow keys navigate the drafts.
* Pressing enter edits the selected draft.
* Pressing backspace deletes the selected draft.

Some variable names tweaked by tabbott.
This commit is contained in:
Jonathan Pan
2017-03-18 13:26:24 -07:00
committed by Tim Abbott
parent d17b759fa2
commit 5556d2341c
6 changed files with 149 additions and 3 deletions
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111
static/js/drafts.js
View File

@@ -203,9 +203,120 @@ exports.setup_page = function (callback) {
populate_and_fill();
};
exports.drafts_overlay_open = function () {
return $("#draft_overlay").hasClass("show");
};
exports.drafts_handle_events = function (e, event_key) {
var draft_arrow = draft_model.get();
var draft_id_arrow = Object.getOwnPropertyNames(draft_arrow);
// This detects up arrow key presses when the draft overlay
// is open and scrolls through the drafts.
if (event_key === "up_arrow") {
if ($(".draft-info-box:focus")[0] === undefined) {
if (draft_id_arrow.length > 0) {
var last_draft = draft_id_arrow[draft_id_arrow.length-1];
var last_draft_element = document.querySelectorAll('[data-draft-id="' + last_draft + '"]');
var focus_up_element = last_draft_element[0].children[0];
focus_up_element.focus();
}
}
var focus_draft_up_row = $(".draft-info-box:focus")[0].parentElement;
var prev_focus_draft_row = $(focus_draft_up_row).prev();
if ($(".draft-info-box:first")[0].parentElement === prev_focus_draft_row[0]) {
$(".drafts-list")[0].scrollTop = 0;
}
if (prev_focus_draft_row[0].children[0] !== undefined) {
prev_focus_draft_row[0].children[0].focus();
// If the next draft is cut off, scroll more.
if (prev_focus_draft_row.position().top < 55) {
// 55 is the minimum distance from the top that will require extra scrolling.
$(".drafts-list")[0].scrollTop = $(".drafts-list")[0].scrollTop - (55 - prev_focus_draft_row.position().top);
}
e.preventDefault();
}
return true;
}
// This detects down arrow key presses when the draft overlay
// is open and scrolls through the drafts.
if (event_key === "down_arrow") {
if ($(".draft-info-box:focus")[0] === undefined) {
if (draft_id_arrow.length > 0) {
var first_draft = draft_id_arrow[0];
var first_draft_element = document.querySelectorAll('[data-draft-id="' + first_draft + '"]');
var focus_down_element = first_draft_element[0].children[0];
focus_down_element.focus();
}
}
var focus_draft_down_row = $(".draft-info-box:focus")[0].parentElement;
var next_focus_draft_row = $(focus_draft_down_row).next();
if ($(".draft-info-box:last")[0].parentElement === next_focus_draft_row[0]) {
$(".drafts-list")[0].scrollTop = $('.drafts-list')[0].scrollHeight - $('.drafts-list').height();
}
if (next_focus_draft_row[0] !== undefined) {
next_focus_draft_row[0].children[0].focus();
// If the next draft is cut off, scroll more.
if (next_focus_draft_row.position() !== undefined) {
var dist_from_top = next_focus_draft_row.position().top;
var total_dist = dist_from_top + next_focus_draft_row[0].clientHeight;
var dist_from_bottom = $(".drafts-container")[0].clientHeight - total_dist;
if (dist_from_bottom < -4) {
//-4 is the min dist from the bottom that will require extra scrolling.
$(".drafts-list")[0].scrollTop = $(".drafts-list")[0].scrollTop + 2 - (dist_from_bottom);
}
}
e.preventDefault();
}
return true;
}
// Allows user to delete drafts with backspace
if (event_key === "backspace") {
var elt = document.activeElement;
if (elt.parentElement.hasAttribute("data-draft-id")) {
var focused_draft = $(elt.parentElement)[0].getAttribute("data-draft-id");
var focus_draft_back_row = $(elt)[0].parentElement;
var backnext_focus_draft_row = $(focus_draft_back_row).next();
var backprev_focus_draft_row = $(focus_draft_back_row).prev();
var delete_id;
if (backnext_focus_draft_row[0] !== undefined) {
delete_id = backnext_focus_draft_row[0].getAttribute("data-draft-id");
} else if (backprev_focus_draft_row[0] !== undefined) {
delete_id = backprev_focus_draft_row[0].getAttribute("data-draft-id");
}
drafts.draft_model.deleteDraft(focused_draft);
document.activeElement.parentElement.remove();
var new_focus_element = document.querySelectorAll('[data-draft-id="' + delete_id + '"]');
if (new_focus_element[0] !== undefined) {
new_focus_element[0].children[0].focus();
}
if ($("#drafts_table .draft-row").length === 0) {
$('#drafts_table .no-drafts').show();
}
return true;
}
}
};
exports.toggle = function () {
if (exports.drafts_overlay_open()) {
modals.close_modal("drafts");
} else {
exports.launch();
}
};
exports.launch = function () {
exports.setup_page(function () {
$("#draft_overlay").addClass("show");
var draft_list = drafts.draft_model.get();
var draft_id_list = Object.getOwnPropertyNames(draft_list);
if (draft_id_list.length > 0) {
var last_draft = draft_id_list[draft_id_list.length-1];
var last_draft_element = document.querySelectorAll('[data-draft-id="' + last_draft + '"]');
var focus_element = last_draft_element[0].children[0];
focus_element.focus();
$(".drafts-list")[0].scrollTop = $('.drafts-list')[0].scrollHeight - $('.drafts-list').height();
}
});
};