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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/* eslint-env module */
const { Interactions } = ChromeUtils.import(
"resource:///modules/Interactions.jsm"
);
const { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
const { PlacesUtils } = ChromeUtils.import(
"resource://gre/modules/PlacesUtils.jsm"
);
const metadataHandler = new (class {
/**
* Maximum number of rows to display by default.
*
* @typedef {number}
*/
#maxRows = 100;
/**
* A reference to the database connection.
*
* @typedef {mozIStorageConnection}
*/
#db = null;
/**
* A map of columns that are displayed by default.
* @note If you change the number of columns, then you also need to change
* the css to account for the new number.
*
* - The key is the column name in the database.
* - The header is the column header on the table.
* - The modifier is a function to modify the returned value from the database
* for display.
* - includeTitle determines if the title attribute should be set on that
* column, for tooltips, e.g. if an element is likely to overflow.
*
* @typedef {Map<string, object>}
*/
#columnMap = new Map([
["id", { header: "ID" }],
["url", { header: "URL", includeTitle: true }],
[
"updated_at",
{
header: "Updated",
modifier: updatedAt => new Date(updatedAt).toLocaleString(),
},
],
[
"total_view_time",
{
header: "View Time (s)",
modifier: totalViewTime => (totalViewTime / 1000).toFixed(2),
},
],
[
"typing_time",
{
header: "Typing Time (s)",
modifier: typingTime => (typingTime / 1000).toFixed(2),
},
],
["key_presses", { header: "Key Presses" }],
]);
async start() {
this.#setupUI();
this.#db = await PlacesUtils.promiseDBConnection();
await this.#updateDisplay();
setInterval(this.#updateDisplay.bind(this), 10000);
}
/**
* Creates the initial table layout to the correct size.
*/
#setupUI() {
let tableBody = document.createDocumentFragment();
let header = document.createDocumentFragment();
for (let details of this.#columnMap.values()) {
let columnDiv = document.createElement("div");
columnDiv.textContent = details.header;
header.appendChild(columnDiv);
}
tableBody.appendChild(header);
for (let i = 0; i < this.#maxRows; i++) {
let row = document.createDocumentFragment();
for (let j = 0; j < this.#columnMap.size; j++) {
row.appendChild(document.createElement("div"));
}
tableBody.appendChild(row);
}
let viewer = document.getElementById("metadataViewer");
viewer.appendChild(tableBody);
let limit = document.getElementById("metadataLimit");
limit.textContent = `Maximum rows displayed: ${this.#maxRows}.`;
}
/**
* Loads the current metadata from the database and updates the display.
*/
async #updateDisplay() {
let rows = await this.#db.executeCached(
`SELECT m.id AS id, h.url AS url, updated_at, total_view_time,
typing_time, key_presses FROM moz_places_metadata m
JOIN moz_places h ON h.id = m.place_id
ORDER BY updated_at DESC
LIMIT ${this.#maxRows}`
);
let viewer = document.getElementById("metadataViewer");
let index = this.#columnMap.size;
for (let row of rows) {
for (let [column, details] of this.#columnMap.entries()) {
let value = row.getResultByName(column);
if (details.includeTitle) {
viewer.children[index].setAttribute("title", value);
}
viewer.children[index].textContent = details.modifier
? details.modifier(value)
: value;
index++;
}
}
}
})();
function checkPrefs() {
if (
!Services.prefs.getBoolPref("browser.places.interactions.enabled", false)
) {
let warning = document.getElementById("enabledWarning");
warning.hidden = false;
}
}
checkPrefs();
metadataHandler.start().catch(console.error);
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