File size: 12,905 Bytes
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function showDownloadFeedback(message, duration = 4000) {
clearTimeout(readerContext.downloadFeedbackTimer);
readerContext.downloadFeedback.textContent = message;
readerContext.downloadFeedback.hidden = !message;
if (message && duration) readerContext.downloadFeedbackTimer = setTimeout(() => readerContext.showDownloadFeedback(""), duration);
}
function updateDocumentState(patch) {
return readerContext.readerRuntime.update("document", patch);
}
function updatePanelState(patch) {
return readerContext.readerRuntime.update("panel", patch);
}
function applyPageInversion(persist = false) {
document.documentElement.dataset.pageInverted = String(readerContext.pageInverted);
readerContext.pageInvertToggle.textContent = readerContext.pageInverted ? "关闭页面反色" : "页面反色";
readerContext.pageInvertToggle.title = readerContext.pageInvertToggle.textContent;
readerContext.pageInvertToggle.setAttribute("aria-label", readerContext.pageInvertToggle.textContent);
readerContext.pageInvertToggle.setAttribute("aria-pressed", String(readerContext.pageInverted));
if (persist) {
try { localStorage.setItem("reader-page-inversion", String(readerContext.pageInverted)); } catch (_) {}
}
}
function applyReaderTheme(theme, persist = true, animate = true) {
const anchor = readerContext.foliateScrollAnchors.capture();
if (animate) {
clearTimeout(readerContext.themeAnimationTimer);
document.documentElement.classList.add("theme-transition");
void document.documentElement.offsetWidth;
}
readerContext.readerTheme = theme === "light" ? "light" : "dark";
document.documentElement.dataset.theme = readerContext.readerTheme;
readerContext.readerThemeToggle.innerHTML = readerContext.readerTheme === "dark" ? readerContext.THEME_MOON_ICON : readerContext.THEME_SUN_ICON;
if (animate) {
readerContext.readerThemeToggle.classList.remove("is-changing");
void readerContext.readerThemeToggle.offsetWidth;
readerContext.readerThemeToggle.classList.add("is-changing");
readerContext.themeAnimationTimer = setTimeout(() => {
document.documentElement.classList.remove("theme-transition");
readerContext.readerThemeToggle.classList.remove("is-changing");
}, 280);
}
readerContext.readerThemeToggle.title = readerContext.readerTheme === "dark" ? "切换到白天模式" : "切换到夜间模式";
readerContext.readerThemeToggle.setAttribute("aria-label", readerContext.readerThemeToggle.title);
readerContext.readerThemeToggle.setAttribute("aria-pressed", String(readerContext.readerTheme === "light"));
for (const article of readerContext.content.querySelectorAll(".foliate-continuous > article"))
article.classList.toggle("reader-document-dark", readerContext.readerTheme === "dark");
if (persist) {
try { localStorage.setItem("theme", readerContext.readerTheme); } catch (_) {}
}
readerContext.foliateScrollAnchors.restore(anchor);
}
function setZoom(percent, persist = true) {
const anchor = readerContext.foliateScrollAnchors.capture();
const pdfAnchor = readerContext.pdfHybridUrl ? readerContext.pageAtMarker() : null;
const pdfBounds = pdfAnchor?.getBoundingClientRect();
const pdfOffset = pdfBounds ? (readerContext.viewport.getBoundingClientRect().top - pdfBounds.top) / Math.max(1, pdfBounds.height) : 0;
const normalized = VoiceOfMLReader.clampNumber(percent, 25, 400, 100);
const horizontalCenter = readerContext.viewport.scrollWidth
? (readerContext.viewport.scrollLeft + readerContext.viewport.clientWidth / 2) / readerContext.viewport.scrollWidth
: 0;
readerContext.updateDocumentState({ zoom: normalized / 100 });
readerContext.content.style.setProperty("--reader-zoom", String(readerContext.documentState.zoom));
readerContext.zoomInput.value = String(normalized);
readerContext.pdfShellWindow?.resize();
if (pdfAnchor?.isConnected) {
const bounds = pdfAnchor.getBoundingClientRect();
readerContext.viewport.scrollTop += bounds.top - readerContext.viewport.getBoundingClientRect().top + pdfOffset * bounds.height;
}
if (readerContext.htmlFrame && readerContext.htmlFrame.contentDocument)
readerContext.htmlFrame.contentDocument.documentElement.style.zoom = String(readerContext.documentState.zoom);
if (readerContext.pdfDocument) readerContext.rerenderVisiblePdfPages();
if (readerContext.capability.mode === "foliate")
readerContext.content.style.setProperty("--reader-zoom", String(readerContext.documentState.zoom));
readerContext.viewport.scrollLeft = horizontalCenter * readerContext.viewport.scrollWidth - readerContext.viewport.clientWidth / 2;
if (persist) {
readerContext.zoomChangedByUser = true;
try { localStorage.setItem("reader-zoom", String(normalized)); } catch (_) {}
}
readerContext.foliateScrollAnchors.restore(anchor);
if (persist) readerContext.scheduleSave();
}
function emptyPanel(list, message) {
list.innerHTML = `<div class="panel-empty">${message}</div>`;
}
function highlightPanelItem(item, query) {
const nodes = [];
const walker = document.createTreeWalker(item, NodeFilter.SHOW_TEXT);
while (walker.nextNode())
if (!walker.currentNode.parentElement.closest(".panel-item-remove"))
nodes.push(walker.currentNode);
const pattern = new RegExp(query.replace(/[.*+?^${}()|[\]\\]/g, "\\$&"), "giu");
for (const node of nodes) {
const text = node.data,
matches = [...text.matchAll(pattern)];
if (!matches.length) continue;
let start = 0;
const fragment = document.createDocumentFragment();
for (const match of matches) {
fragment.append(text.slice(start, match.index));
const mark = document.createElement("mark");
mark.className = "search-match";
mark.textContent = match[0];
fragment.append(mark);
start = match.index + match[0].length;
}
fragment.append(text.slice(start));
node.replaceWith(fragment);
}
}
function filterPanel(view) {
readerContext.clearSearchHighlights(view);
const query = (view.querySelector(".panel-search").value || "").trim().toLowerCase();
for (const item of view.querySelectorAll(".panel-item")) {
const searchableText = [...item.children]
.filter((child) => !child.classList.contains("panel-item-remove"))
.map((child) => child.textContent)
.join(" ")
.toLowerCase();
item.hidden = !!query && !searchableText.includes(query);
if (query && !item.hidden) readerContext.highlightPanelItem(item, query);
}
}
function notifyReaderUiState(state) {
readerContext.readerUiHistoryState = state;
if (readerContext.isReaderOverlayFrame())
window.parent.postMessage({ type: "voice-reader-ui-state", state }, location.origin);
}
function setReaderPanelOpen(open, restoreFocus = false, focusPanel = false) {
readerContext.readerRuntime.update("panel", { open });
const panel = document.querySelector("#history-panel");
const focusWasInside = panel.contains(document.activeElement);
clearTimeout(readerContext.panelAnimationTimer);
document.querySelector("#history").setAttribute("aria-expanded", String(open));
if (open) {
readerContext.readerPanelInteractionSerial++;
panel.hidden = false;
panel.inert = false;
void panel.offsetWidth;
panel.classList.add("is-open");
readerContext.selectPanel(readerContext.panelState.selected === "full-search" ? "full-search" : readerContext.mediaElement ? "media" : "toc");
readerContext.updateTocCurrentMark();
readerContext.notifyReaderUiState(readerContext.panelState.selected === "full-search" ? "full-search" : "panel");
// Only an explicit keyboard/assistive activation moves focus. Automatic
// directory discovery and ordinary pointer opening leave reading alone.
if (focusPanel) (panel.querySelector('#full-search-view:not([hidden]) input') ||
panel.querySelector('.reader-panel-tabs button[aria-selected="true"]:not([hidden])') ||
panel.querySelector('#history-close')).focus({ preventScroll: true });
return;
}
panel.classList.remove("is-open");
panel.inert = true;
readerContext.panelAnimationTimer = setTimeout(() => {
if (!panel.classList.contains("is-open")) panel.hidden = true;
}, 250);
readerContext.notifyReaderUiState("base");
if (restoreFocus || focusWasInside) document.querySelector("#history").focus({ preventScroll: true });
}
function setPanelSearchOpen(button, open) {
const input = button.closest(".reader-panel-view").querySelector(".panel-search");
button.setAttribute("aria-expanded", String(open));
input.inert = !open;
if (open) {
input.hidden = false;
void input.offsetWidth;
input.classList.add("is-open");
input.focus();
return;
}
input.classList.remove("is-open");
setTimeout(() => {
if (!input.classList.contains("is-open")) input.hidden = true;
}, 190);
button.focus();
}
function selectPanel(name) {
if (name === "media" && readerContext.mediaTab.hidden) name = "bookmarks";
readerContext.updatePanelState({ selected: name });
if (readerContext.progressTools) readerContext.progressTools.hidden = !["toc", "media"].includes(name);
for (const button of document.querySelectorAll(".reader-panel-tabs button")) {
const selected = button.dataset.panel === name;
button.setAttribute("aria-selected", String(selected));
button.tabIndex = selected ? 0 : -1;
}
for (const view of document.querySelectorAll(".reader-panel-view"))
view.hidden = view.dataset.panelView !== name;
if (name === "full-search") readerContext.notifyReaderUiState("full-search");
else if (readerContext.panelState.open) readerContext.notifyReaderUiState("panel");
if (name === "bookmarks") readerContext.renderBookmarks();
if (name === "history") readerContext.renderHistory();
if (name === "media" && readerContext.mediaElement)
readerContext.mediaPanel.querySelector(".media-panel-time").textContent =
`${readerContext.formatMediaTime(readerContext.mediaElement.currentTime)} / ${readerContext.formatMediaTime(readerContext.mediaElement.duration)}`;
readerContext.updateProgressTools();
}
async function renderHistory() {
const list = document.querySelector("#history-list"),
generation = readerContext.nextReaderGeneration("history");
try {
const entries = await VoiceOfMLReaderStore.list();
if (!readerContext.isReaderGenerationCurrent("history", generation)) return;
list.textContent = "";
for (const entry of entries) {
const row = document.createElement("div");
row.className = "panel-item";
if (entry.mediaTime != null) row.dataset.mediaTime = String(entry.mediaTime);
const link = document.createElement("button");
link.type = "button";
link.className = "panel-item-main";
link.textContent = entry.title || entry.url;
link.addEventListener("click", () => readerContext.navigateReader(entry.readerUrl));
const meta = document.createElement("small");
meta.textContent = `${entry.pageCount ? `第 ${entry.page || 1} / ${entry.pageCount} 页 · ` : ""}${new Date(entry.lastReadAt).toLocaleString()}`;
const remove = document.createElement("button");
remove.type = "button";
remove.className = "panel-item-remove";
remove.textContent = "删除";
remove.setAttribute("aria-label", `删除阅读记录：${entry.title || entry.url}`);
remove.addEventListener("click", async () => {
if (entry.url === readerContext.sourceUrl) {
readerContext.historySuppressed = true;
await readerContext.progressSaveChain;
}
await VoiceOfMLReaderStore.remove(entry.url);
readerContext.renderHistory();
});
row.append(link, remove, meta);
list.appendChild(row);
}
if (!list.childElementCount) readerContext.emptyPanel(list, "暂无阅读记录");
readerContext.filterPanel(document.querySelector("#history-view"));
} catch (_) {
if (readerContext.isReaderGenerationCurrent("history", generation)) readerContext.emptyPanel(list, "无法读取本地记录");
}
}
return {
showDownloadFeedback,
updateDocumentState,
updatePanelState,
applyPageInversion,
applyReaderTheme,
setZoom,
emptyPanel,
highlightPanelItem,
filterPanel,
notifyReaderUiState,
setReaderPanelOpen,
setPanelSearchOpen,
selectPanel,
renderHistory
};
}
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