Merge branch 'pagenation-and-navigation'

3 files changed, 84 insertions, 14 deletions

diff --git a/src/content/histories.js b/src/content/histories.js
deleted file mode 100644
index 9c5665d..0000000
--- a/src/content/histories.js
+++ /dev/null
@@ -1,8 +0,0 @@
-const prev = (win) => {
-  win.history.back();
-};
-const next = (win) => {
-  win.history.forward();
-};
-
-export { prev, next };
diff --git a/src/content/index.js b/src/content/index.js
index 91f5420..a9ccd63 100644
--- a/src/content/index.js
+++ b/src/content/index.js
@@ -1,7 +1,7 @@
 import '../console/console-frame.scss';
 import * as consoleFrames from '../console/frames';
 import * as scrolls from '../content/scrolls';
-import * as histories from '../content/histories';
+import * as navigates from '../content/navigates';
 import Follow from '../content/follow';
 import operations from '../operations';
 import messages from '../messages';
@@ -15,7 +15,7 @@ window.addEventListener('keypress', (e) => {
   browser.runtime.sendMessage({
     type: messages.KEYDOWN,
     code: e.which,
-    ctrl: e.ctrl
+    ctrl: e.ctrlKey
   });
 });
 
@@ -35,10 +35,18 @@ const execOperation = (operation) => {
     return scrolls.scrollRight(window);
   case operations.FOLLOW_START:
     return new Follow(window.document, operation.newTab);
-  case operations.HISTORY_PREV:
-    return histories.prev(window);
-  case operations.HISTORY_NEXT:
-    return histories.next(window);
+  case operations.NAVIGATE_HISTORY_PREV:
+    return navigates.historyPrev(window);
+  case operations.NAVIGATE_HISTORY_NEXT:
+    return navigates.historyNext(window);
+  case operations.NAVIGATE_LINK_PREV:
+    return navigates.linkPrev(window);
+  case operations.NAVIGATE_LINK_NEXT:
+    return navigates.linkNext(window);
+  case operations.NAVIGATE_PARENT:
+    return navigates.parent(window);
+  case operations.NAVIGATE_ROOT:
+    return navigates.root(window);
   }
 };
 
diff --git a/src/content/navigates.js b/src/content/navigates.js
new file mode 100644
index 0000000..64e5fc0
--- /dev/null
+++ b/src/content/navigates.js
@@ -0,0 +1,70 @@
+const PREV_LINK_PATTERNS = [
+  /\bprev\b/i, /\bprevious\b/i, /\bback\b/i,
+  /</, /\u2039/, /\u2190/, /\xab/, /\u226a/, /<</
+];
+const NEXT_LINK_PATTERNS = [
+  /\bnext\b/i,
+  />/, /\u203a/, /\u2192/, /\xbb/, /\u226b/, />>/
+];
+
+const findLinkByPatterns = (win, patterns) => {
+  let links = win.document.getElementsByTagName('a');
+  return Array.prototype.find.call(links, (link) => {
+    return patterns.some(ptn => ptn.test(link.textContent));
+  });
+};
+
+const historyPrev = (win) => {
+  win.history.back();
+};
+
+const historyNext = (win) => {
+  win.history.forward();
+};
+
+const linkPrev = (win) => {
+  let link = win.document.querySelector('a[rel=prev]');
+  if (link) {
+    return link.click();
+  }
+  link = findLinkByPatterns(win, PREV_LINK_PATTERNS);
+  if (link) {
+    link.click();
+  }
+};
+
+const linkNext = (win) => {
+  let link = win.document.querySelector('a[rel=next]');
+  if (link) {
+    return link.click();
+  }
+  link = findLinkByPatterns(win, NEXT_LINK_PATTERNS);
+  if (link) {
+    link.click();
+  }
+};
+
+const parent = (win) => {
+  let loc = win.location;
+  if (loc.hash !== '') {
+    loc.hash = '';
+    return;
+  } else if (loc.search !== '') {
+    loc.search = '';
+    return;
+  }
+
+  const basenamePattern = /\/[^/]+$/;
+  const lastDirPattern = /\/[^/]+\/$/;
+  if (basenamePattern.test(loc.pathname)) {
+    loc.pathname = loc.pathname.replace(basenamePattern, '/');
+  } else if (lastDirPattern.test(loc.pathname)) {
+    loc.pathname = loc.pathname.replace(lastDirPattern, '/');
+  }
+};
+
+const root = (win) => {
+  win.location = win.location.origin;
+};
+
+export { historyPrev, historyNext, linkPrev, linkNext, parent, root };